Originally Posted by
chaadster
Yes, that's correct, and it's why the Hogg guide is not terribly helpful for bikes which are not identical. It'll get you in the ballpark, but you'll probably need to re-adjust as you learn to adapt the different geometry to your demands.
No it works fine for bikes that aren't identical, I've done it many times on different bikes.
What I would suggest though is to have the same saddle and handlebars though