Tom, I had some pretty good results way back when with a pistol belt pad on my LLB Ruck's belt. With the newer pads and a couple of MALICE clips or zipties you would probably get a better ride. Heck, you could just cut the belt off at about 3 inches from the bag, stitch a loop, and use a pistol or rigger belt (or just some webbing and an SBR), two alice clips and a pad- I've seen similiar done to put good waist belts onto the SpecOps THE pack, and if pulled tight it doesn't wiggle all that much.

The other nice thing about the Continental Ruck is if you need more space, you can undo the flap straps and run them through the mounting loops for an ALICE or MOLLE buttpack.

Yes, it is a versatile little beast. Mine is still going strong after 15 years.