Has anyone successfully used the USCartool A500 Crossmember?

So I'm working on my A500 install and asked a friend who is an industrial fabricator and a fabricator of Mopar drag cars to look at the situation. All those drag cars are wagons (Wagons of Steel Racing). Regarding the structural integrity of the modification to the frame member running over the trans hump, we planned out cutting out some of that member and reinforcing the remains like several on this thread. He pointed out that none of their C-bodies ever had that member. When you remove the trans, you have to take all the load off the torsion bars or the frame member on each side would bend in under the pressure of the torsion bars when you remove the crossmember. This reinforces the idea of the very heavy USCT transmission cross member taking a lot of that load. Just some more info to put into the mix here, and probably a good idea to use the C-body protocol when removing the cross member to avoid unnecessary distortion after these mods.

By the way, in several of these builds, either both inner crossmember bolts are moved or none. It seems that most of the issue is on the drivers side, has anyone moved one bolt and not the other? with 20/20 hindsight does that seem it would have been adequate?