Haha. Thanks. I was mostly interested in the added wheelbase but 1.25" is probably more than I was looking for. Still might try it one of these days, but will have to study the manuals a bit first to see if it would work with a GB-02. Quite happy with the GB-02 at the moment.
Another thing I always wanted to try was to run GT-01 turnbuckles on a GB-01 or GB-03. It wouldn't work on my GB-02 though. Maybe it's time I got a GB-03.