Dropping two jean sizes is pretty good in that amount of time. When you say you don't see a difference, what do you mean? Like in the stomach area, your butt, thighs, what do you mean? And you could also be gaining muscles in some areas like your legs and such since you do so much cardio and that could be a reason you aren't seeing a difference in your leg area if that is one of the areas you aren't seeing a difference.
2010 F-350 6.4L 4X4 CC SRW Longbed
Spartan 250 tune, 5 inch Flo-Pro exhaust w/DPF delete, AFE stage 2 CAI