"neilm,
You never mentioned how far away from the best number the steam chaser is when calculating that ficticious 55% winning percentage ..."
Ken,
By chasing steam I was referring to getting down at the original number at a slower moving copying book or a real book that moves on action.
While the posting forums are filled with anecdotal truisms taken as gospel and often having little or no basis in reality, I did not just make that 55+% up. I blended the recent past results vs. opener of moves of two or more points in NCAA football.
Over the last 3 NCAA football seasons, moves as measured by the "Open" as displayed on Don Best (now they use CRIS openers) vs. the closing number at CRIS/OLY...
moves on sides of 2+ points....
vs. open 486-371-12 56.7%
vs. close 424-430-15 49.7%
So the 55+% I referenced was on the opener, true chasing of the original number, not up the ladder (for totals moves of 2+ it was 54.3%).
I have the numbers up the ladder but don't really feel like posting them. Suffice it to say, getting the original # will provide positive expectation bets and the further up the line you move the worse the steam chaser's expectation.
I was just trying to answer the poster's question wondering why people chase steam, which also serves to answer the question as to why people pay $550 a month for a line service, why books look down on steam chasing etc. and etc..
BTW I agree with you about both steam chasers and cloning bookmakers. Both cause a relative homogeneity in the marketplace and cause the discrepancies in lines available for a shopper to shrink hurting a bettor trying to place a bet on Team A at the best price.