I am mightily cheered by this thread for I couldn’t get 29er SB8s onto 29er Flows for love nor money. They came up well short and then, to add insult to injury, the OP and I got given a degree of grief on this thread for having the temerity to suggest that they might be a little bit incompatible with the Stan’s profile.
I don’t care what anyone says, the fit is tight and too much so IMO. I’ve fitted dozens of 700c folding tyres (road variety) to many different rim combo’s including the use of big, floppy latex tubes and I’ve never struggled as much as I did trying to fit the Kenda’s to the Crest rims.
I guess some people will get them to work and perhaps some tyres come up slightly slacker than others. I personally wouldn’t want the hassle of such a tight tyre out on the trial, hence me giving up on them and going for something else. I just hope the new tyres fit!!