5.9 magnum flywheel on 5.9LA

I have a 360LA 130T wheel on my 5.9 Magnum. Balance isn't a ton different and the flange is the same.
Why not just use your 360LA wheel? Should have to just change the disc and bell housing.
I’m just concerned about balancing and vibration, I’m reading on forums (sweptline.org) that flywheel (balancing) is a problem.