QEV & Firebolt
I will confess that after installing a QEV that I have had trouble using standard site paint. I tend to get lots of barrel breaks which I can only guess is a result of the faster bolt action. I've ordered a lucky stage 3 which combined with my lucky stage 2 and my firebolt, should combine to be a bit softer on paint.
However saying that, when I have been to sites I have had no worse trouble shooting site paint than guys with Ego's or Angels. Might be for different reasons, but the results are the same.
However, I now plan ahead and pre-buy good paint before I go, which doesnt really work out anymore expensive in the long run for the day, and I can throw paint lasers due to good fps consistency as a result of my up's.
Oh, sites should be capping your rate of fire at 15bps, of which an Ion can do stock and is also electronically capped by the stock circuit board. Although a QEV and aftermarket bolt will increase your potential rate of fire, you will not benefit from it's use unless you have an aftermarket board, and you have somewhere to use it. Although it is good fun showing your mates your marker that fires 20bps+ sometimes.....