You might do a search on the 'zone. Seem to recall a few years back someone had done a "knock-off" of the Geckos (or some other drive). There may have been mention of a lawsuit for infrigement - but may not have happened?
No doubt they chose a good product to "violate.", but how well did they build it?
Best of luck - :cheers: Jim
Experience is the BEST Teacher. Is that why it usually arrives in a shower of sparks, flash of light, loud bang, a cloud of smoke, AND -- a BILL to pay? You usually get it -- just after you need it.