Thanks for your input guys.
Nikki, my goal is to continue with the KB snatch-Negpress exercise until i can do at least 5 reps each side with 40kilo KB, and btw 1 pistol with same.

My workout at the moment is

KB snatch-negpress
Weighted pistols-can do 5-6 very strict reps with 20kilos
Every 3rd workout I do calf raises with 40kilo KB.

I have never experienced such a drop off in strength-usually if i weaken from overtraining i lose at most 2 reps. Maybe the difference is that this is a ballistic move, at least the snatch portion, and my previous experience is with zero momentum training.