If you underbet your bankroll, or don't use a Kelly betting system, can you win in the long run? I have a full time job so my bankroll is always increasing, but I feel that if I'm underbetting the points that are super advantageous to me I will possibly have a negative EV. I play strictly single deck and I'm familiar with depth charging, so maybe my previous statement doesn't really make sense. Is this why in 6-deck you have to maintain such a large bet spread (to sufficiently utilize higher counts)?
Thanks in advance