I just flew my first, second edition Mach 1 last week with a new OS 46-AX and as usual one of the best trainers I've flown and owned. (I instruct too) Lost the first edition Mach 1 last month when it took a bad bounce off a snow bank while doing T&G's and when the floats came off during the cartwheel they took the bottom of the fuse with them.
The plane had about a hundred flights on it anyway and was showing it's age, being a cheap trainer I tend to throw them around pretty hard, thats all the fun, no stress and low cost.