18-25 big blind
It is the most comfortable period in a game because your strategy is quite simple: to receive a maximum, to lose a minimum. Often the profit is made mini-raises: 2 BB – from long loaf or 2,5 BB – from a small blaynd.
In case of a game in a line item profitable will keep bank modest because ahead not one street.
Doing larger rate out of a line item, we give to the opponent chances of bank much more weakly. At the same time it is worth hoping for bigger quantity of fold, and also the increased size of mid-sized bank.
Be careful from 3-bet: applying them, you are strongly involved in distribution and literally become attached to bank. Its size to a flop can already be more than a half of your stack, and it is dangerous with weak cards.
So, without having A-Q, a central part of one-colored connectors or strong couples (from J-J above), it isn't recommended to be got involved in fight.
Small pocket couples and variegated connectors already not so are suitable for a serious fight because often get under domination. Low potential chances of a victory shall become for you a signal to dumping of cards.
15-18 big blind
3-bt with such stack it doesn't make a sense: you very strongly tie yourself to bank. It is better to leave then directly in all-in: so though fold equty will be 10 times more, you play initiatively and aggressively.
Respectively, exclude any 3 betas, and stake only oll-in. It is worth returning to reraise unless in case of achievement of high level of a game and in case of the corresponding rivals capable to feel your "thin" game.
And time of 3-bet you don't put, and there is nothing to be afraid of 4-bet!
10-15 big blind
Raise with such stack it is necessary to do approximately in 2-2,5 BB, it is no more. Only this way you will have rather comfortable conditions for continuation of a draw of a hand on a postflopa: a risk ratio to possible benefit.
If, being on a small blind, long loaf hangs in folds, then all-in it can be the profitable decision – you give to the rival maximum fold equity. But when you on a big blind remain to play with long loaf in a heads up, it is better to look flop (whenever possible and in case of a weak hand).
Less than 10 big blind
If only you not the expert Spin, it is worth excluding from your standard actions a call and raise. Leave the check (if you are on a big blind), all-in and fold
The reason besides in a strong binding to bank: in a case, for example, even a raise or a cbet in 2 BB in case of the opponent's allin at you not enough chances of bank will be frequent to equalize a rate.
As you can see, the main questions are connected actually with technical and mathematical reasons for a betsize in spin