Sell them ?. Friend of mine and I bought 2 from contacts we have in France.
Used them over last 2 days, for both day and night dives in Pembs.
Pro's:
1) Super smooth shaft release with no recoil
2) Tracks well horizontally
3) Easy aim open muzzle
4) Excellent shaft runner integration
Cons:
1) Very nose heavy. Will need to add a cork IMO
2) Double loop nylon a pain to arrange quickly
3) Low on power unless you half load then fully load. (Will explain).
4) Way too expensive IMO @ E300
5) You will need to customize by adding bungie at front end
To half load, you will need to:
1) Pull back half way underneath barrel then...
2) pull back half way ontop of barrel then...
3) Pull back 100% to nearest notch to trigger mech underneath, then...
4) Pull back 100% to last notch on spear on top of barrel
That is a pain, especially when you need to load quickly in kelp IMO.
For me the Cayman HF I've been using is the better gun at the moment. Less faff and for me more accurate, probably becuase I'm used to it.
Honestly.....save your money.