[A_PLUS]

Keeping seperate bankrolls is dangerous.

In Finance, there is a theory that says that one of the reasons markets are ineficient, and that many investors lose money is they use favorable 'mental accounting'

For instance, they seperate their portfolio into winners and losers, and try to hold onto the losers until they break even. Or they do the opposite and quickly sell losers and only keep their winners. Basically they take no time to look at the 'big picture' and end up making bad decisions.

That can be the case with poker players as well. There is no reason to keep seperate bankr rolls for record keeping. If the only record you keep is how much your $$ goes up and down, they are general to the point of being useless anyway.
What it can do, is cause you too look at your MTT portion and say, "man I really need to concentrate here, I am barely breakeven at MTTs, where I am winning at SNGs". As far as profit, they are the same thing, "YOUR MONEY".

Now I can understand keeping a certain level of $$ that you will not dip below (whatever you need for your SNG play). But what you need to be calculating is hours, ROI, ROR, etc for each type of poker you play, having seperate bankrolls in no way aids that.

Think of your profits as YOU
think of the games you play as individual, yet completely linked components of you. It is too easy (I am guilty myself) of mentally seperating these components, "I am a winning XXX player, but I lose it all at YYY" is a dangerous way to look at your game if you are serious about it. When you keep everything together, it is easier to see each component's effect on the whole. i.e. I only made 8$/hr this month, I wonder why? Ohhhh...I played 19hrs of MTTs for -7$ profit.

FWIW, I dont think you are doing any of the these things, but I wanted to post this for the general pop.

Also, if you are a casual player, forget what I just wrote, this was more for the aspiring pros among you.