charts

memorized chart in black jack secrets count -1 to +5
Then tryed to learn chart in proffesional BJ -10 to + 10
Now have more numbers swimming threw my head and Have to admit its challenging.Quesion: the true count does get high sometimes but not that often, Is learning the -10 to +10 count worth this effort above the -1 to +5 I know it is but is there a greater advantage than I even, comprehend as a novice

count hardly ever reaches above +6, if you ever do see a rare +8 or more, then just don't hit any stiffs!

deviations above +6 aren't worth much, and they hardly ever happen, so don't worry about it.

Learning deviations below -2 is pretty worthless also. You have a minimum bet out (or better yet, why are you still playing with such a bad count?), but with a minimum (or less than minimum bet) what can you gain from a devaiation?

The only reason I mention -2 instead of -1 is to pick up the 13 vs 3 index.

IIRC it was Don Schlesinger who analyzed indexes to determine which ones had the highest gain, based on their frequency of occurrence and on how much was being bet at those counts. Negative indexes aren't especially valuable since you don't have much (if any) money out during them. Pair-split decisions aren't as valuable because they just don't occur all that often.

He came up with the top eighteen plays (sixteen regular plus two surrender) that are especially valuable to use an index for. Hitting/standing on 16 v 10 is the most important. IIRC, Wong's PBJ (not the sandwich) mentioned that this decision is worth more than all of the pair-splitting indexes combined.

Those indexes are the ones you should learn. If you want to use more, that's your choice of course, but you won't gain much by memorizing them.