That is an extremely interesting question this year and it along with HSS will change how people tackle shot planning and course management with bag building. Traditionally until a couple of months back lighter discs flew faster, glid more and turned more initially and often faded a hair less than their full weight counterparts. In 2009 a different option became available in ultra light uselessly fragile R Pro plastic in Boss. There was the option to throw far with some predictability but with a need to constantly buy new ones or selecting when to use durable discs.
Things changed big time with the introduction of the spanking new Blizzard plastic from Innova. At least in mild winds they act fairly alike with 20 grams heavier regular plastic counterparts. Blizzard is new but it isn't stupid fragile. R Pro in later blends in some putters and mids ain't useless btw. So far my longest disc has been a 163 ESP Nuke that interestingly is a few feet longer than a 161. I threw 139, 145, 150 and 155 R Pro Bosses in one session last fall against the Nukes and they were shorter. While about as fast with conceivably roughly similar drag the Bosses at lighter weights were shorter. While the Boss even in the more understable R Pro mold (different from regular plastic Boss mold) fades a hair more than the Nuke or the same i can't remember the momentum of the lighter Bosses set limits to the distance i got. Interestingly the 155 R Pro Boss was the longest of the Bosses. Dave McCormack of Gateway says that 166 is the longest weight in the discs. That statement is a few years old so with more gliding, faster discs that may go down a few grams possibly.
The intriguing part with the Blizzard plastics going down to super low weights comes for players that don't have enough power to throw regular plastic regular weight fast beefy discs. Since for the first time the lighter discs won't turn into rollers but are dependable and reliable even with some wind at so low weights that people with your power can control those discs, the distances and especially accurate repeatable distance should increase. What is the best disc and the weight depends on the speed and spin the thrower can generate. If i were you i would try at least the least fading variety of Blizzard discs at different weights to calibrate how much fade you get and how slow and straight a disc you need for control and which weight flies the farthest. If a low weight disc flies farther and/or fade less than the Nuke there should be a role for a disc like that in your bag. If the discs you try won't work they should be fairly easy to sell because Blizzards are spanking new and the hot shit right now. Katana has great distance potential Wraith fades less and is shorter and needs less power to fly on different flight lines.
The multiple flight line ideal from one disc is great for bag building and course management. When you don't carry dozens of discs it is easier to decide which disc to pick for any given shot. And not think if i had more tosses with this disc i would have known i couldn't make it do whatever and i should have picked the next disc into that direction.
Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.