Small blind vs big blind

[zaphod]

This situation occurs quite frequently at the 30+3 SNG.
4-6 players left all folds to you in the small blind. Both you and the big blind have about 800-1000 chips left. The blind is 50-100.

You have been starting to push a few hands lately, and are afraid that if you push again, BB might be feed up and call you. So you call and BB checks. Then no matter how the flop hits you, you bid 100 into the pot of 200 chips. My experince is that this often wins the pot for you, and i belive this has been a positve move for me so far. The move seems weak, but i think it works often enough. Any comments?