Thanks Kalani, but when trying to test-mount the sniper knee it actually really just fits 25+28 and not 24+27 well, which would mean that 25+28 should be left. But part 25 does really look like the inside of the right leg/calf muscle.
When trying the sniper knee on to 24+27 it is really not following the edges, or at least it is much better on 25+28. This sucks