i think what stun and roisin are so bitterly refering to is the R1 Driver. It was put out at level 98 i believe and a few months later WGT ran a propmotion in line with Taylormades promotion of a limited edition black version. WGT offered it to L93 and up, not 98, so all those high level players who felt they earned their 98 R1 felt jipped cuz now a bunch of lower level players had it.
Assuming they think the same will happen with the L100 Covert. When WGT needs some money to pay for an office party or something they can lower the level requirement of this driver and call it a limited edition one time offer and watch the money pile up.
Just speculating of course
EdIt: and that still doesn't answer your question about the L85 Driver. I will say this tho not sure where you are getting idea that all the other 282 drivers are not that good. I had the 89 SLDR and loved it, still have it. In some scenarios it could outdrive the 93 R1 rated 5 yards longer. It had great precision and good forgiveness with a reasonable meter. From what I have heard the xhot at L83 is very similiar. Can't say how much better they are than your 275 R1 but I think they are better enough to take strokes off your game, just by getting you closer. Guess that all depends on how you play and what you are playing for.
Good luck