Which deviations are most valuable?

[aceside]

Just because insurance may be rare (1 in 13 hands doesn't seem rare to me, but that's beside the point) doesn't mean it's not valuable.

Insurance is offered 1 in 13 hands, but you take the insurance bet when the true count is above 3. I mean this is very rare compared to 16v10 when the true count is zero. I still trust myself, beside, I believe the surrender option is the most important deviation.