Ian,
Here's a pic of my Caliber.
I don't know if you get over to RunRyder but I uploaded more picks of my conversion to my gallery there.
http://runryder.com/gallery/00171/
I've only flown about 1/2 of a gallon through it so far. The engine would not tune out properly and was losing power so I thought I had lost the rear bearing. Upon inspection it looks like I ingested something substantial. The piston/cylinder/ring are complete waste. I should have the parts in by Friday so maybe I'll get some more flights in this weekend.
Cheers,
Mike