Originally Posted by DYNO DAVE
Hi Brian , I don't know but when you block the hole it dose affect the firing cycle I have tried it before on one that a friend said it was bothering him , when the hole is clear it works a treat block it and the gun changes , I've got one at the moment I'm working on I'll play around with it and let you know what I think it's doing.
Cheers Dave, that would be interesting.
I don't think it's a huge blast of air, more a puff of air that comes out. It might be that having foam over the hole still lets out enough air for it not to reduce power.
If you make the hole bigger, does it improve performance i wonder? Curious about why it would affect power