Hey, Astro: Sounds like you are pretty quick with the % odds, & might have insight to this than most here-
I've been seroiusly doing this just 4+ yrs, but turned profit each yr - grinding out margin (in the end - it probably pays $1 hr - factoring in time we all spend charting / researching, ect!)
NOW - I have figured these two secondary schemes two seperate ways, ONE is profitable, from pure odds standpoint, yet I've always come out ahead by:
1. Always utilizing the infamous 5% (1/20th of unit - MIN bet) "0-for-parlay" when I lay 3* or more units, or 3 or more wagers....it's hit only 6 times in 4 years....which means I've gone 0-for six times in 4 years (about avg., for 600+ days). It's only 5% of a "Unit" - just 5-10% more juice than normal, depending on # Units bet, ect. (6 hits - gained back 20%- 34% of day wagers).
2. Upon Monthly cashout - Leaving another 1/4 -1 unit or so for JUST THIS type of wager here - except waiting for that every-so-often perfect storm of games (ESP. like now in CBB - Dec., Intra-Divisional match-ups, with +5 to +12-ish Dogs, then Parlay 2, 3, or 4 of them on Moneyline....odds are freakishly poor, obviously~
BUT, I've nailed 3 of 16 of these in 4 years...18.75% (bound to go down)
$10 to win $606 in 04 / 5 to win 553 and 10 to win 804 both last year
$1964 from $135 TTL.
I KNOW parlays are a bad bet - more of a LOTTERY than anything.....
But, is this common / advisable / better than throwaway odds?
I'll take the odds over LOTTERY odds any day, any time - REGARDLESS of how low they may be!