Chuck Kennedy wrote:
I don't know a lot about them, but what about the old DGA "Factor ___" discs? One old schooler around here had a "Factor 5 Stingray", as I understand it, they shave off the bottom part of the wing to make a disc less stable. Are these discs actually legal? They're not modified by the player, but they ARE modified.
They're still shown in the PDGA Approved disc table for DGA. I find it interesting that if you compare the overall height of the factored disc to the baseline disc or compare rim heights, they are the same. That would mean that whatever shaving / factoring was done was less than half a millimeter to fall in those measuring tolerances, which isn't much.
Yeah, the factored discs were done by DGA. Ed made sure everything was on the up and up with those, so they are legal.
It is interesting to note how little factoring it takes to alter the flight an how hard it is to detect such a thing. During the development of the Warlock and Magic I knew of multiple people that I played unsanctioned rounds with that had factored Wizards and Warlocks. The discs were factored by GDS and given to players as research, but nobody tried to get them back and destroy them once the research was done. These discs are pretty hard to detect unless you are really examining the disc. Knowing the people that I know have them, I think it's a pretty safe bet that some of them have been used in PDGA sanctioned play.
Again it comes back to the kind of sport we are. Dave McCormack talks big about supporting disc testing at events and wants a crew at NT's just to weigh discs and approve them for each event. We don't have the money or the infrastructure set up to do that. If we did, I suppose there could be a template that could be used for each mold that your disc would have to be able to meet some standard variation on, so if a disc was over tuned (or too beat up, since that loophole would have to be closed) and could not meet the template standards, it would be tossed out as illegal. This could happen...right about the time PDGA events get as much money thrown at them as NASCAR races. At our current levels, we don't even have the money to develop the templates, much less pay a team of folks to use them.
If a disc gets beat up by a RHBH thrower, does it have the same level of instability if a LHBH thrower then uses it throwing opposite spin?
The same thing would go for a new disc...basically is the stability of disc A effected by the direction of the spin. I have not heard of anything, for example lefties in mass saying Firebirds really are not all that stable, that would anecdotally indicate that as being true. But how can we really know for sure? The spin in one direction or the other may slightly effect stability, but how would you measure that?