Maybe its because the way we bet is different than most, but I find it to be quite limited to only be able to estimate to the nearest deck even in 6 and 8 deck games. Believe it or not even though you are trying to give yourself a broader way in which to play, making mistakes can be more costly. Say you have a RC of 12 with 2.5 decks left. With a 1/4 deck estimate the TC is 4.8, with full deck estimating of say 3 decks the TC is 4. Almost a full unit difference but still okay. But what if the decks remaining was 2.25 with a RC of 5 and you looked at the decks remaining and mistakenly saw 2.5, so than went with your estimation of 3 decks. My TC is just about 2.25, yours is just over 1.5. Most likely at this point you are missing out on a betting opportunity because your TC is missing the mark. There is also the chance of missing or messing up indice plays by being off on your TC by close to a unit or more consistently. I know it seems like splitting hairs but there are so many small things that don't take huge efforts that can ultimately put your game on a different level. Of all the professionals that I've played with, there are very few, and none of the MIT members, that would ever consider only estimating to the full deck. I have to believe there is a reason for that.