Not yet but I have two to do because I want wearable pairs. If you use his method ( cutting) you can take the bottom off all One piece in theory but you sacrifice the upper of the donor, unless you are a samurai surgeon with that knife. If you use another method like hot water and a heat gun you run the risk of breaking it apart, the sole is quite thin near the mudguard and another areas. It would be easier to stick a 97 sole on there. What he does not show is lining up the upper with the sole and clamping it. The whole process takes time. I’d use this method for clamping/gluing. It’s all love