Scrod, are you using the retrogression hip bag? I need something to replace the bag I usually carry on my leisure rides(it tends to slip and dig into my shoulder sometimes).

How secure is the belt? any slippage? Is the bag comfortable with a full load?(u-lock, multi tool, patch kit, co2 pump, spare tube, etc.)

With the bag I'm currently using my u-lock will dig into my back if there's a lot in the bag.