After reading a bunch of other blogs and forums I decided to take the initiative and add foam inserts to my wing lead edge nose assemblies.
I decided for me, the easiest way to do this was for me to use my CNC Co2 laser cutter. After a few attempts, I was able to get a decent cut out using the laser but found this way of cutting 3/4 inch foam to not be optional although I felt it would be ok for my needs. I think the best way to do this would be to use a wire cutter and template cutting several at once.
The main issue I had was achieving a uniform cut through the foam; the laser tends to be hotter on the top side of cut causing more shrinkage on that side than on the backside.