Huben Bottle Regulator Creeping

I can’t comment on that model specifically but your thinking is on the right track. Any new regulator is subject to pressure creep so I wouldn’t worry about it just yet. During the break-in period, the seal material (plastic) will take on an imprint of the valve seat, and in turn will be able to halt the transfer of air more promptly. To accelerate the break-in period, the reg benefits more from a mix of cycling and idle dwell time than it does from simply running a bunch of rounds through it in one sitting. So for example, you can dry fire it once every 15 minutes or so...however long it takes to creep up and stop climbing. And simply sitting idle is of some benefit because the plastic seal is pressed against the orifice, taking on a compression set.
 
I can’t comment on that model specifically but your thinking is on the right track. Any new regulator is subject to pressure creep so I wouldn’t worry about it just yet. During the break-in period, the seal material (plastic) will take on an imprint of the valve seat, and in turn will be able to halt the transfer of air more promptly. To accelerate the break-in period, the reg benefits more from a mix of cycling and idle dwell time than it does from simply running a bunch of rounds through it in one sitting. So for example, you can dry fire it once every 15 minutes or so...however long it takes to creep up and stop climbing. And simply sitting idle is of some benefit because the plastic seal is pressed against the orifice, taking on a compression set.
Thanks NT - I will follow your advice & will keep a close eye on it. If it starts to push over 3625, I guess I will degas and adjust it down a bit.
 
I've never had creep on any of my Huben Power regulators. I have at least 6, cricket, dream universal, Max-ATH. Once I set them they stay. I did have an AliExpress knockoff Huben (before I discovered the real Huben Power) cricket that did drift but nothing like you are seeing. Maybe 100-200 psi.

My oldest is on a Hatsan Barrage. Dream Universal that has been set for 2500psi for probably 18 months.

If it continues you need to contact Nick Scott at Huben Power, [email protected]
He has always been helpful.