Is there a reason why you've shimmed top and bottom row ? Surely you coud have one row flush with the chassis and just shim the other row? Or re they both shimmed to line up the top shock mount with the bottom mount?

If you fit a panhard rod, that would limit lateral movement.

"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10