for the first few pumps. That should help seat the valve.
If it's the disco valve, you can remove the foster fill nipple and add a very light spring to the valve to hold it closed. Go as light as you can with the spring and use a dab of silicone divers grease to the valve seat.
15 shots from the shortish 2250 length tube is pretty good though. You could lighten the striker and get more lower velocity shots if it's just being used for close range target shooting.
RE: Bulk extension ... If the extension is properly threaded, made from the proper materials and properly assembled, you will be fine.
The trick is defining "proper".
Mike T.
EDITED TO ADD: I'd lose the 2400KT tube and get a 2260 and use a gold sharpie to write her name on it!
This message has been edited by TKO22 on Nov 8, 2009 11:36 AM
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