Jeez, talk about bringing up an old thread.

One option is as albertan said, a new spring.

The other is make sure the curve in the upper part of the spring keeps the floor plate at the right angle / try to make it ride higher.

You may have to mod the lip a bit to get it to ride higher.

Also, before modifying anything, try a few dummy rounds with
the bullets seated at different depths. This can sometimes make a difference.