Rubbing my hand 100 strokes on my SRD Latigo every day (50 strokes each hand) wasn't keeping small areas of scratchy / rough / abraded areas from forming. I decided to try glycerin since my hands don't have much oil and tend to need lotion to keep from becoming chapped...
The first time I tried the glycerin on the strop, I sanded out a few 1/2 mm nicks on the edge, and wiped the surface with a damp washcloth (nappy / slightly rough) about a dozen times to get rid of the sanding grit. The next morning, the leather was noticeably smoother, and the strop had a very fast draw.
I went back to daily hand rubbing, and the draw very, very gradually increased. After a couple of months, I decided some areas along the sides looked (but didn't feel) drier than the rest of the strop, so I used glycerin again. The draw was essentially the same afterwards.
Further experimentation reveals that wiping the leather with a damp washcloth a half dozen times with very firm pressure, and then using glycerin results in a little smoother surface and a little faster draw. Glycerin without wiping firmly with a damp rag doesn't seem to change the draw on a strop that isn't "dried out" before hand.
Putting on way too much glycerin, and not waiting for it to fully dry (ie: it's 90% dry, what can it hurt to strop my razor now, rather than shave without stropping this morning) - turns out to increase the draw dramatically. When the strop finally drys, it has a noticeably "grittier" feeling surface though. Hand rubbing some more glycerin in, and waiting for it to fully dry makes the surface glass smooth again though.
Now I glycerin my strop every time I hone my razor - and wait for it to fully dry before stropping my razor. Just use 1 drop every 3 inches is enough, just keep rubbing - it will spread out to cover the strop eventually.
If I hone at night, and want to shave in the morning, I just skip stropping. I can't tell the difference.
ps: I experimented with not stropping for "travel" purposes, and find there was some difference on shave #2 when I skipped stropping, but I could compensate without too much trouble by watching my technique better. On shave #3, I could barely still compensate...