Reddog1, yes I tend to leave them in a lot. Just lazy I expect. My truck has a couple of extras...2 x 75 litre propane tanks that just fit between the rails , rear of axle and the hitch which weigh about the same as 4 x steel rims and tyres. With the 6 inch lowering and that weight it sits real low. The bumps stop rubbers tend to lift the rear about 2 1/2", and make the ride a little stiffer ( about 10%). It is still very comfortable to drive even on dirt roads. I am lucky enough to have a 2 post hoist that I just lift under the hitch until the rear tires are just about to leave the ground, undo the retaining nuts and the stops just twist sideways and out. This take me about 10 minutes maximum to do by myself.
This getting to load, my second time, sloping ground, very nervous.

This is Easter before last, heading off to the Victorian high country for 10 days.

When the TC is on and loaded, the upper helper sits about 1/2" off its stop, and the ride is very nice.
Although I have been thinking about a rear sway bar lately for windy winter driving thru the mountains here.
Sorry rambling, hope this helps