[onefish]

OK Thanks for all your help. Ramon has sent me a catalogue and his kits are more economical than Mamba. I have a couple of questions if anybody can help:

1) Kara-yo and Tovarich kits don't replace the piston like the Mamba kits do. What is the reason for replacing the piston? Is it necessary?

2) Everything I have read says that the Tovarich kits are no good for hunting in caves or around rocks. I assume this is because the 3mm hole that must be drilled in the spear shaft weakens it to bend easily at that point. Is this correct? If that is the only reason, I think I can overcome this problem without too much difficulty.

Tovarich appears to be the simplest system, with no slider on the shaft to get damaged or create additional drag on the shaft. All 'O'ring seals are in the muzzle.

Cheers,
TJ