[spottydog]

Thought I'd let you know apeks flight's are a fine replacement for the originals. No ss tube bending needed. Hole in mounting plate needs enlarging by 1mm everything else fits and nowt else needs changing. The valves centre perfectly through the case holes as well.

 

[graham_hk]

I put DS4s on mine - does take a bit of jigging and you need to order 3/8 UNF parts off swagelok. That was 10 years ago though LOL