I successfully used a 105 Hollowtech crankset and 2mm of spacers on the driveside on a steel Voodoo Wazoo with a 68mm English shell. I was fine tuning a SS chainline.
That's what I was hoping to hear. Just wanted to make sure the spindle would be long enough to allow a mm or two. Thanks!
not sure if you saw but you got a bunch of responses on facebook too: http://www.facebook.com/Cyclocross/posts/10150383427537092