I'll do it. Learned the mod from a sound engineer here in my area. He said they were recording a band called Enable Kain and they brought 5 cabinets with them. The Engineer said that his modded cab would be all they would want to use. They recorded a track with each cab and only used the modded cab after that, then paid the engineer to do the mod to their cab's.

I'll let you know how it works out...