When I bought my 27 a couple of years ago, it came with the old "Tiller Master" - the gray brick of an auto tiller that hooks directly to the tiller. The thing was noisy and sometimes couldn't keep from zig-zagging around, but it was wonderful to have. It seems to have given up the ghost and I haven't been able to find anyone to work on it. The manufacturer closed up shop years ago. So two questions. Does anyone know of a company or individual who repairs these? Or second do you know of a viable replacement? Thanks in advance. Tom