I agree. 285 for indoor spots is a bit much "overkill" in my opinion...heavier poundage and higher speeds are just unnecessary strain on the shooter and the result, in my experiences and observations are that VERY FEW, and I mean few and far between people are shooting 55X plus 300's on spots indoors that are shooting heavier poundages and higher speeds.
I understand that for 3-D, people THINK they must have the 280 or better (depending upon IBO or ASA)....but many would be better served by slowing things a tad and getting the GROUPS and their form under control and backing off a bit.
Here locally, nobody that I know that shoots their 3-D rig for NFAA 5-spot rounds does very well...consistency-wise, nor x-count wise. They normally just get tuckered out about halfway thru the 70 arrows (10 for practice), and the result is often one or two misses and the loss of lots of X's. Those that back off their poundage/speed seem to come up in score and X-count much more rapidly than those that stay with the high speed/poundage.
hope this helps....it isn't like you can't see the spot and you don't know how far away it is...hahahahaha. LOB "em in there.....well, maybe not THAT slow, but you know what I mean...
field14