RE: One more question..
I only swab between shots if it's needed or if I'm trying to get the tightest group I can. I usually use a spit patch which is just a dry patch that I touch to my tongue to get it damp on one side. I run this patch wet side first in short strokes down the bore then flip it over and do again. If the patch is too wet you need to run another dry patch to get the wetness out of the bore. I usually can just load after the 1 patch without problems.
In the case of my sidelocks, yes the swabbing can cause an accumilation of crud in the fire channel. Most of my sidelocks are used for patched round ball so I don't swab them (the patched ball takes care of that for me). If I do swab the SL's I will fire a cap through it before loading to make sure the fire channel is clear.