I have welded frame connectors, torque boxes and a welded k member in the car, so chassis flex should be less than it was when new. Currently the LCA bumpstops are about 5/8" to 3/4" from the frame. They do bottom when I drive on bumpy roads. A stiffer T bar would surely reduce that.

I have KYB Gas-a-Just shocks on the car. Many people bad mouth them but I have no complaints. I've said that I'll switch to Bilsteins but the only time I think about it is when I'm on this forum!