Ameyam,
If you can get your hands on the APC 12.34x3.75 I would try that. I used one of those for quite awhile in a 3D plane running the 55AX and it is a perfect prop for 3D with the 55. It spool up great and you get alot of thrust for pull out of a hover. I used it in a Profile plane and it would hover at less than half throttle and would accelerate straight out of a hover.