frame is tied. better late then never i guess..lmao

Yall did it right. If you support it on the frame rails, you're using the roof to hold the car together and there's naturally some flex goin on. That's why the doors become difficult to open when it's supported by the frame rails. When supported by the suspension, all of the other areas of the car that are supposed to support its weight are not being left out and allowed to do their job. Your buddy's smart. As long as you can still open and close the doors good, weld away.