Well, if you put one of these on an old "non suspension corrected" 26" MTB frame that expects a 405mm A-C crown, and use a 27.5" front wheel, it will lift the front end about 10mm, which is a good thing IME with old MTBs. Not sure how the increased rake and larger wheel will affect things. Maybe the decreased wheel flop will "cancel out" the effect of the larger wheel? Wild speculation on my part. I have a 1992 Trek 930 that would be a good candidate, but I've got too many irons in the bike project fire right now.
Chris