Best Recipe Range to spend Merits on for cash?

Of all the TF ranges what is the best one to spend Merits on for attempts at cash?

10-15
15-20
20-25
25-30
Etc.

I usually just spend Merits on a random recipe from my level but now I am more interested in making money. Any suggestions?

See this thread from one page back.

Personally, I've been having awesome luck with the 30-34 roll. Got Numina, Miracle and LotG big money specials the last few days. For a large sample though, the other thread is prolly right.