Same.
I don't see how that wore out your shoe like that, unless you were only catching that outter lip of your shoe on the gas. Looks like just a bad shoe to me.
Yall are all weird for having driving shoes. I heel-toe in big ass steel toe work boots, slick dress shoes, and every day tennis shoes... bitches. I think that's the real test on whether or not you can heel-toe downshift.
To answer the people who don't understand this move: if you throw it in a lower gear and just drop the clutch while turning, you're likely going to lock up your rear tires for a moment, ruining the whole turn. This is assuming you are going all out... if your not, you'll just get this weird jerk-back effect that doesn't feel too good for your clutch/tranny.
As you dive in the turn, hard on the brakes, you shift out of gear, as the shifter handle travels through neutral to whatever gear you want to be in, quickly let out the clutch and hit the gas with the part of your foot not on the brake (i prefer to brake with my heel, gas with my outter toes). Push the clutch back in, put it in gear, and quickly let the clutch back out.
A lot of people don't do the in-neutral bit, and just hit the gas while the clutch is in. I used to do this... I find it works a lot better my way. This is the way my barber taught me how to do it. He's no Japanese drift king, but he's a veteran of the twisties, been going to open track days all his life, in everything from MG's to Porshe's.