Chase and myself did part of the TCAT between Capreol and North Bay last July... in that area it is an old rail trail that consists of slag for a base which is very hard on tires. It was a good run... backroads to Tobermory, camped on Manitoulin, rail trail to Espanola, logging roads to Ramsey, back logging roads over and down to Capreol, Rail trail 1/2 way to North Bay until we ran out of light, Nipissing Trail down to the Park to Park, Park to Park to the 400, some exploring of some crown land and home.
I'd be interested in the Calabogie to North Bay run with my DRZ... especially if I could get a spot on that trailer!