I had a Retul fitting done not too long after I got my road bike. Other than the bike itself, it was by far the best money I have spent on cycling. I had it done by a certified fitter at a shop where I did not purchase the bike from.

About 15 years ago, I fell from the top of a 10' ladder landing flat on my back and messing it up pretty bad to the point that I could no longer continue in martial arts. Outside of some bad posturing that I tend to do every once in a while while riding, I have not had any problems with pain on any ride, short or long distance since the fitting.

Here are the bike shops that offer the Retul fit in Arizona. The one you mentioned is listed.

BICYCLE RANCH
15454 N. Frank Lloyd Wright Blvd.
Suite A-1
Scottsdale, AZ 85260

CARMICHAEL TRAINING SYSTEMS TUCSON
7000 E. Tanque Verde Road
Suite 26
Tuscson, AZ 85715

GRASKY ENDURANCE PERFORMANCE CENTER
1918 E Prince Rd
Tucson, AZ 85719
Certification Status: Retül University Certified Fitter