David, I have a similar leak on Vanessa, the blue GT200 that I am babysitting for my friend Leslie while she lives in Italy for the next couple of years. It started a month or so ago and leaves a similar pool.
I crawled under her and looked from above but can't pinpoint the source. Boris is going to look at her as soon as I can get her there, but I have been busy fixing Rocket and working.
I don't ride her much, only a few short rides since noticing the leak, but I monitored the coolant level and it remains on full. I am also hoping it is just a hose or clamp. I had a similar, but much bigger leak on Rocket last year that was a poorly routed hose that got a hole worn into it from rubbing against a body part. Boris fixed that one and rerouted the hose.
Bill I started to open things up this morning. I managed to get the glove box loose but it's still tethered by the emergency seat release cable plus all my doodads on the left kneepad (dual outlets, Heattroller). Some of that is a little finnicky, so I'll continue disassembly tomorrow. I also think that I won't be able to remove the floorboards without removing the floor rack and battery cover.
The coolant level turned out to be fine, so very little actually leaked. Oddly, there was no leakage today on the centre stand. There goes my side stand theory about leakage pooling in the floor due to the lean. Why it would leak at the office but not at home remains a mystery.
Everything seems shipshape at the left radiator. That points to a leak at the joint in the floor.
By tomorrow afternoon I should be able to report more. Based on other comments, this thread may turn out to be useful.
Good night from the Great White North!