Ummm,
I don't think that you would have as effective weight transfer with your foot in an inclined position. Elevated front foot on an incline would seem to me to mean less weight being lowered and therefore less resistance for the muscles. Elevated front leg is easier than non elevated front leg. Elevated on incline IMO would work more quad, less glute and involve less resistance. AND tweak your foot. Doesn't sound natural, but maybe I am envisioning too huge of an incline. Also, does not sound good on the knees because you are taking the work out of the big muscles of the glutes. Are you trying some new exercise you read about or just wingin' it??
Again, I am no expert, but you could not push as much through your heel if you are on an incline. Do you feel it less in the glutes?? Maybe AJOCK will answer for you or another PT.
Janice