man, people act like dx plastic is ripped in half after one round.
some pictures from my home courses:
http://www.playdg.com/kaposia/?h=5
http://www.playdg.com/kaposia/?h=6
http://www.playdg.com/kaposia/?h=12
http://www.playdg.com/kaposia/?h=13
http://www.playdg.com/oakwood/?h=6
http://www.playdg.com/oakwood/?h=7
http://www.playdg.com/oakwood/?h=10
http://www.playdg.com/oakwood/?h=12
http://www.playdg.com/oakwood/?h=13
http://www.playdg.com/plymouthcreek/?h=7
http://www.playdg.com/plymouthcreek/?h=8
http://www.playdg.com/lakewoodhills/?h=10
http://www.playdg.com/lakewoodhills/?h=11
i play 30-40 rounds a month, and my dx discs (gazelles and teebirds at least) will last me about 2-5 months before they are flippy. it usually takes me a minimum of 6 weeks to break one in to where i really like it, then it lasts for ~3 months before they reach the next stage of break in.
a few reasons why:
1) i don't throw drivers on holes longer than 275' unless it is a very low ceiling, uphill, or a hard fade shot. most holes are under 275'. there's maybe 15 or so courses i know of in the country that have an average hole length of longer than 300' and are super wooded. if the holes are outside of deuce range, accuracy will dominate distance.
2) i don't throw 100% power when hitting a small gap. this is just common sense
3) i carry multiples of any dx disc i carry.
i can probably break it down a little more to show what i am talking about. key: osd = overstable driver (champ/z), dxd = dx driver (# indicates wear, 1 = newish, 3 = very beat), M = mid, P = putter. be patient as i am getting to a point
kaposia (medium/long course): 1 M, 2 M, 3 DXD3, 4 DXD3, 5 short M, 5 long DXD2, 6 short M, 6 long DXD2, 7 short M, 7 long OSD, 8 DXD1, 9 DXD2, 10 DXD2, 11 M, 12 M, 13 OSD, 14 DXD2, 15 DXD2, 16 M, 17 DXD2, 18 P.
all shorts = 1 P, 8 M, 1 OSD, 1 DXD 1, 5 DXD2, 2 DXD3
all longs = 1 P, 5 M, 2 OSD, 1 DXD1, 7 DXD2, 2 DXD3
north valley (long course): 1 OSD, 2 short OSD, 2 long DXD3, 3 M, 4 P, 5 OSD, 6 DXD1, 7 OSD, 8 DXD2, 9 OSD, 10 DXD2, 11 DXD1, 12 M, 13 OSD, 14 DXD2, 15 DXD1, 16 short DXD2, 16 long DXD1, 17 DXD2, 18 DXD2.
all shorts = 1 P, 2 M, 6 OSD, 3 DXD1, 5 DXD2, 1 DXD3
all longs = 1 P, 2 M, 5 OSD, 4 DXD1, 4 DXD2, 2 DXD3
oakwood (medium/short course): 1 M, 2 OSD, 3 DXD2, 4 DXD2, 5 M, 6 M, 7 DXD3, 8 DXD2, 9 P, 10 M, 11 DXD3, 12 M, 13 DXD2, 14 OSD, 15 DXD3, 16 DXD2, 17 DXD2, 18 DXD2.
summary = 1 P, 5 M, 2 OSD, 0 DXD1, 7 DXD2, 3 DXD3
acorn (short/medium course): 1 short M, 1 long DXD2, 2 M, 3 DXD3, 4 P, 5 M, 6 M, 7 M, 8 OSD, 9 DXD2, 10 short M, 10 long DXD2, 11 DXD2, 12 short P, 12 long M, 13 OSD, 14 P, 15 short M, 15 long DXD1, 16 DXD2, 17 M, 18 DXD2.
all short: 3 P, 8 M, 2 OSD, 0 DXD1, 4 DXD2, 1 DXD3
all long: 2 P, 6 M, 2 OSD, 1 DXD1, 6 DXD2, 1 DXD3
across 7 layouts, the averages per round off the tee (parenthesis show the # of each disc i carry and calculating assuming each gets thrown the same number of times) =
1.4 P (3) = 0.5 per disc
5.1 M (4) = 1.3 per disc
2.9 OSD (3) = 1.0 per disc
1.4 DXD1 (2) = 0.7 per disc
5.4 DXD2 (2) = 2.7 per disc
1.7 DXD3 (2) = 0.9 per disc
as you can see from my teeshots, the most any disc averages seeing is about 3 throws per round. about 70% of my non-teeshots are done with a P, about 28% with OSD/M, and the remaining 2% with the other drivers.
assuming i play even par, that means i throw about 1 shot per round with DXD1/2/3 combined. about 5 shots each with OSD and M, and 25 shots with putters.
the composite:
27 throws across 3 putters
10 throws across 4 mids
8 throws across 3 overstable champ/z drivers
9 throws across 6 dx drivers
i'm going to make up some numbers here:
let's say it takes 15 major hits (during the first 1/3 of flight) to take a disc from dxd1 to dxd2, and 30 major hits to take a disc from dxd2 to dxd3, and 45 major hits to take a dxd2 to dxd3. 4 moderate hits (during the middle 1/3 of flight) = 1 major hit. 4 minor hits (during the final 1/3 of flight) = 1 moderate hit (16 minor = 1 major).
let's say i suck and 25% of my teeshots get a major hit, 25% get a moderate hit, 25% get a minor hit, and 25% don't hit anything. calculations will be based on the assumption that the 1 non-drive per round will always be performed with the disc being calculated for.
a DXD1 to DXD2 will take ~58 throws (1.7 throws per round = 34 rounds)
a DXD2 to DXD3 will take ~116 throws (3.7 throws per round = 31 rounds)
a DXD3 to NULL will take ~232 throws (1.9 throws per round = 122 rounds)
now let's say you buy 6 new DX, break 3 of them in to DXD2, and buy 3 DXD3's off the pond rats. every week you rotate which ones you throw.
now a DXD1 to 2 lasts 102 rounds.
a DXD2 to 3 lasts 93 rounds.
a DXD3 to NULL lasts 366 rounds.
these assumptions won't be accurate for most players. even on really tight courses my percentages are more like 10% major, 20% moderate, 30% minor, 40% no hit which would push the lifespans out substantially.
from the sound of it you would benefit from tracking down some x-outs or old tournament stamped gazelles and teebirds for $5-6 each and grabbing a stack of 5 of each or so.