Early on when the blinds are basically irrelevant to your stack so the ev on it will more than likely be positive considering the rewards are much greater than the risk
it costs u little with the rewards being potentially massive
when blinds are significant obviously this changes
Blinds are NEVER irrelevant, merely lower or higher. Throwing away even the smallest blind with out any plan except for "maybe I get lucky" is a major leak IMO.
1. you are mainly folding to a bad flop for you to any raise.
2.You are not getting paid for your raises as much as a good flop for you is often a bad flop for the others, who are doing as you and limping with crap and folding mainly.
3.Just as many endless possibilities for disguised strong hands for your opponents, so your monster is only a monster if it is the total nutz. Dont forget, you lose the most money on your good hands. I hope you understand what I mean here.
4. You are folding to any raise - and re raise - that comes PF.
As I stated, to know whether this is a +ev move or not, you need to look at a good sized sample of hands where you have done this, see what you invested, and what your ROI in this particular situation was. Then you will know. Simply to say "its a cheap bet, maybe it pays off" (or "it will more than likely be positive") is not good enough reason to do this. Many players I have spoken to about stats on position, claim that the blinds are their largest losing spot.
Are you just assuming, or can you post some "28% +ROI in SB when limping" stats or whatever. These are easy to see if you have stat collecting software, otherwise you need to do it by hand, and you may want to consider this, unless you do this all the time and are winning a lot. Then, hey, good luck Let me know in a year if it still works that good.