Counting 5's only

Using Basic Strategy 99% with a 8 deck shoe at Rivers Casino or other for that fact, what are your thoughts?

I think you are going to lose all your money.

You need a side count of tens/aces vs. 2/3/4/5/6/7s. Actually, you can then drop the 5 count. Also, get a book called, Knockout, for betting and index advice. It's almost as easy as counting fives, and it wins money to boot.

The Spaniard's single deck game has a player advantage if just one five is missing from the deck.

In an 8 deck shoe, if all 6 players get a pair of fives, they each double down and get a 5 and the dealer shows a 5, has a 5 in the hole, hits for a 5 and another 5 to get a 20, then you have a huge advantage the rest of the shoe. Otherwise, counting just the fives in a shoe game is useless.

It was fun tracking fives and aces the other day along with a traditional counting system. It seems like sometimes your card count may say one thing, but the fact of a lot of aces and very few fives remaining, says another. It could be useful information to supplement your counting system, whatever it may be.

PS-- Even only counting fives might be helpful is supplementing a traditional counting system, but I don't know how much it is worth. I would feel more confident in a slightly negative count if I knew that most the fives were already dealt. For example, if the dealer has a sixteen, there are probably more 6s and 7s remaining, which can bust her. Anyone?