Sounds like your fitter may have had the best fitting tool in the world without knowing exactly what the objective numbers really mean that Retul gives the fitter? I can't say because I wasn't there to hear exactly what he or she may have told you.

There are a few reasons for a fitter to keep your saddle to bar drop a minimum.

Closed hip angle. It doesn't matter how flexible your back and hams are. If you are too far over and your hip angle is getting closed up at the top of the stroke, it can hinder breathing and power. Many folks don't realize that power is made all the way through the stroke. Some spots more than others, of course.

Your back and overall flexibility may be able to handle the drop but there are future problems that can arise. Neck and shoulder issues, hand pain, etc.

Anyone can buy a Retul system. But like it has been said before, Retul is just a tool. The fitter must know what the numbers mean, and how to apply those numbers to the fit. I feel a rider can be dropped a little further than some of the normal ranges if flexibility allows but the hip closed angles MUST fall within the ranges I like to see. Most people I fit make more power up a little bit more than the full race position, have more comfort yet still retain a good aerodynamic position.

Good luck.