Hi Ken. The capture setting are pretty darn crucial so I found out on DSO's with the modded toucam. It depends on the object your trying to get too.
If you could 'set it & forget it' on DSO's we'd be laughing but its not turning out that way. Plenty of trial & error happening my end before I consider going for an actual capture.
I've found 45 second exposures to be the best overall...& plenty of them stacked; the more the better. Most guys are getting & stacking 100.
I've found 90% gamma & 15-20% gain is giving me pretty good results so far.
I'll keep ya posted as to setting etc. as I go mate
Might be of some help to you..