Trouble with Heel-Toe

I can Heel-Toe fine when I wear my every day shoes ( Adidas Samba ) but not when I wear my AdiRacers. I think it has something to do with the diffrence in the thickness of the soles. This is very frustrating :banghead: . Can anyone give me tips or suggestions on pedals and/or technique that could fix or at least help me with this problem? Any help would be greatly appreciated.