Pretty much my experience with my .177 57. Bought it from Germany back in 2019, it was running at 6ftlbs due to the German market mainspring. Re sprung it with a cut down 97 spring, big mistake, 13ftlbs and awful to shoot, after a chop and coil collapse, now running at 9ftlb. Still not as accurate as i'd like. I think the longish stroke and light weight go against it.