Reverse shoot down?

[spikeball]

I haven't experienced this before; first few shots after sitting from my T2 (new to me) were extremely low velocity, but the third or fourth was just fine and would perform well from that point on. Once it had been sitting a while, the first shots were, again, low.
Before I start troubleshooting this thing, is this a valve issue or a regulator issue?

[ClonerJ]

I had this issue setting up my autococker. I found that for me it was from the reg creeping and the higher pressure was pushing it passed the sweet spot. It stopped once my reg broke in a bit and got stable.

[jerryjjackson69]

That is your regulator creeping. Rebuilding the regulator should take care of it.

[spikeball]

Cool! Thanks guys.