Stanford Wong had an article on BJ21 a few months bakc stating that always taking insurance and increasing your beat spread from 4:1 to 5:1 was a good move. It would label you as an "Insurance Taker" and likely the pit wouldn't worry about you after that. Makes sense to me, if you have a good bet spread, you would need to insure you larger bets anyway, so the cost on the smaller ones in neutral/negative counts would be relatively small, more than compensated by the larger bet spread.

It's one of the comprimises I frequently have to make up here in boat country, frequently there are only a couple of tables open at at time on some of the smaller boats, so "Wonging" is not a practical option.