Is there a mod for the SL2 for easier pinch harmonics?

I've been playing a Mod 50 with an SL2 module for the last 4 years or so. I love the tone on both channels of the SL2, but I did notice that it was much harder to get good pinch harmonics then it used to be on my Peavey XXX. I learned to live with it and kind of forgot about it. But, I recently plugged into an old Line 6 POD at rehearsal. I used the Plexi amp model with a Tube Screamer model boost pedal. The pinch harmonics were effortless, and I was only playing with medium gain.

My question is, is there mod that can be done to the SL2 module that would keep it's stock tone intact, but make pinch harmonics easier to play?

Thanks!

The Sl2x is a brighter more upper mid snarl version of that module
If your good with solder you can change 2 components I believe
Or contact Bruce by email or Matt Fig from Motorcity mods