Hrqls: That first example where you drop two blots onto your 2-point and ace point.. that's a big no-no. Blots in your home table should be working for a living - that means either preparing to make high points or hitting twice and going deep (eg 4-1: 6/5*/1*). There are times when you'd hit with two blots, such as your opponent opening with a (doubtful but not bad) 4-1: 24/20 24/21. If you then roll a 2-1 you'd hit them both. You gain a tempo plus the chance to make one or both of those valuable points on your next go. [LOL. You were busy posting while I was writing this. The redsales games is that exactly!] Gaining blocks on 2 and 1 is very inferior.
In your own game example I would have done that hit. I frequently do a double-tap with a single man from the 6 or 8 points when given the opportunity.