Magazine Refurbishing?

[alterfritz]

Hello all,

I have a new 1970s Luger with 2 original magazines. One works really well, the other seems to have some minor bending or damage at the top. First, it fits into the grip only with a little force and then it tends to create jams quickly.
I also bought two mecgear mags. They are performing quite well but the last 3 rounds or so also create jams sometimes. I believe the spring in these magazines is weaker than in the original.

I read that some people here have specialized in tuning those magazines, I read about a wooden handle to replace the plastic one that can break and new springs. Is there anybody who does this work and whom I could contact about this?

Thanks