they did the same as your doing here but with a x valve,,, have a read bud,, i still have a ton of seals and spares here at the workshop from my mag days,,,The frame will cap the bps from 6 - 14 bps (think that's the range) so shouldn't have a problem with bps Limits, I've heard the frame can be bothersome but I've got the bits so I might as well have a go, I'll go read the warping stuff.