Never heard of the ikuwatsit, but i like the sound of the spec. No didn't see any on the island. There were some fantastic bikes at Jurby lots of groups riding kwak triples, kettles atc. Lots of XBR's and quite a few GB's as usual with IOM lots were johny foreigners.
We always do a bit of TRX spotting but only managed 2, but i know there was another over there, but didn't see it.
Weather was very good to us and even managed a BBQ one evening.
My TRX track bike wears harris fairing and seat unit but nothing exotic like frame.