The transition to trad may not be as tough as you think. A lot of what you know about form from the wheels will transfer over to the stick. Of course release will be different, and, if you pick a longbow, your grip will be different. Get used to shooting at much closer distances and much slower arrow speed. I think the problem is more mindset than mechanical, though.
An interesting story came I heard from a well known trad guy discussing speed. When challenged about speed he said his trad bow was faster. His explanation was that by the time the compound shooter pulled his bow, located the peep sight, and centered the sight pin on the deer, he already had an arrow in the deer.