Thank you Roger, your experienced input on this issue is appreciated.
We are trying to put off builders from this practice but not outlaw it as clearly there are builders who have, or have access to the expertise necessary.
Christian, even on M2, the ram was modded with new tie rods. The pneumatic cushioning is just about useless with the high velocities, so the next stage is to replace the top cap with a machined 6082 T6 block just like the base. Whilst it has yet to fail, continued use can only weaken the cast top end.
Paul
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