Experimenting with springs in my new Versandhaus 50s. Came with 7.5j spring which shoots lovely, managed to get it up to 8 ftIb with this spring and a modified tbt kit with 3 washers, obviously a bit harsher but nice.

Tried a TX200 mk3 spring and gave 803 fps with jsb rs.... not bad shooting cycle but I am used to my tuned Prosport/HW97

Currently back at 6.5 ftIb with 7.5j spring coz it is so nice 😆

No gaulling at all, really like the little gun.