E.I.

My longer term results are not as good in either strike rate or POT, so my forum tipping has exceeded my accustomed levels. Since I've been keeping records of every bet made, this has been the overall outcome:

32% Win Strike
16% POT (If I bet level stakes)

The Vig,
A closed progression is basically a sequence of bets contained to a maximum length, usually based on experienced overall strike rate.

Betting to a pre-determined sequence of:
2.2.2.3.3.3.4.4.4.STOP
is a simple example of a closed progression. A profit experienced within the sequence immediately ends it, or a total run of losses is closed out by reaching the STOP LOSS point. (Then a new sequence would commence).

It has to have a logical connection, of course, to the statistical make-up of your own betting history. I think that's a most important point.

My progressions are based on the OPPOSITE of loss-chasing and are determined by a previous "block" of results, not just on one individual outcome.

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Whatever happens, be happy.