I took the plunge. I bought the Vaypor Premiums in WIDE. $255 CAD from EvansCycles.
I consulted the sizing wizard and my clearance was exactly 3mm. I went half size more than my recommended size which gives me 7mm of clearance.
BTW, that sizing wizard recommended that I get customs and no way I could afford it at the moment. The Bont rep told me through email that I'm out of the Bont scale even on the wide versions(I'm +20mm width wise), but I thought if I can squeeze my foot in some Sidis then the Bonts should be better.
I'm stoked. Hopefully the customs authorities don't catch my shipment because there's an 18% duty on footwear here
(+ GST and brokerage fees...OUCH!)
PS
I actually also scored a pair of Shimano R315s. I just laughed when I looked at them. They're regular fits and there's no way my feet won't bleed after a century. I'm going to sell these bad boys. Too bad, I got them for cheap.