[bkholdem]

I suggest you don't look at "moving up" as a permanent thing. Aren't you going to move back down at some point if you feel like you can't hack the next limit up? What about if you are not sure if you can hack it but the larger bet sizes are somewhat unsettling and you loose 4 buy in's your first day?

I suggest looking at moving up in stakes as a transitional thing. I would also suggest you don't need to be "properly bankrolled". For example, you could set aside a couple of buy ins or so to test yourself out at the next level up. Also, my understanding is that the 20 buy in figure is for a winning player. Until you move up you do not know if you will be a winning player there.

I guess my main point is that there is not one hard and fast rule about moving up. Just like there is not one hard and fast rule about bankroll. I personally like to have 40-50 buy ins because it is more psychologically comfortable for me.