Join Date: Feb 2013
Posts: 51
2/2 goes every day
5/5 (generally with a "mandatory" straddle) goes Tuesday, Friday, Saturday, and often Thursday and Sunday
10/10 and 25/50 goes Tuesdays (I don't play that high, but I imagine both usually have the straddle so they play bigger)
If you post your question(s) in the Parx thread, you can probably get a lot more info.