Woken up at 4 am this morning and had this going round in my mind. Does having the firing pot spring under more tension (tightened down) mean the hammer spring has to be under more tension? Conversely, if the firing pot spring is looser (undone a bit), will the hammer spring be under less tension to...

Cheers Rog. Got a bsa probe and a hw100, the bsa with the hw100 seals works a treat.
Thanks

I have read a few discussions about setting up a s200 with a regulator and have tried most of the suggestions. I have a mk1 and have fitted an external Huma regulator. Also fitted a new hammer spring. Winding the venturi screw out and the hammer spring in doesn't alter the ft lbs much. I have tried ...

I've got myself an s200 which I have fitted an xtx pressure gauge with quick fill and their external regulator to the original cylinder. Works well however, not being one to not tinker if there is another option, I am thinking of getting the hunter cylinder to fit. Its the one that is a bit longer a...

I have just fitted a Huma external reg to my s200 along with a pressure gauge and quick fill port.
Had to mess about a bit to get it steady. Now at 11.4 ft lbs with diablo

Has anyone fitted one? If so, which fill probe fits the quick fill port?
It says on the xtx site a hw100 probe fits but it is to tight (probe is to big).