Speculation
Someone made the good point that the air alone should have left some sort of mark on the bill.
Since it didn't, could it be possible that the air isn't coming out until after the bolt clears the feed? If that were true, you'd have much straighter shooting paintballs.
This might make me buy a retro valve.
Will AGD be selling retro valve with LV mod's are will it be a seperate kit?
Well due to my lack of creativity, I
will leave you all with the only
words of advice my father ever
gave to me:
If you wiggle t more than 3
times, your playing with it.