I really appreciate this feedback. In all honesty, I'm not overly concerned with having either. My current pistol is a cajunized CZ P01. It has an EPS Carry and light up front. But, I like simplicity. The optic and light distract me from enjoying the pistol.
I also find myself leaning towards Ken Hackathorn's sentiment: possibilities vs probabilities. The probability of needing a light on my pistol in a gunfight is very low. Let's be honest, the probability of getting into a gunfight is very low. Are both possibilities? Yes.
I want to be an effective pistol shooter. That's my primary motivation. As noted above, I'm not the type who daydreams about the O.K. Corral, but I value the confidence and knowledge that comes from investing into a skill and taking it seriously. I'm not that interested in target shooting as an end in itself. I want to train for a purpose, and defensive shooting makes the most sense to me. I will CCW the pistol, though my work requirements make it difficult to carry at all times. I also value the overall experience. A beautiful gun with history and class are more important to me than the gains that come from increased capacity, red dots, and WMLs.
Oh crap! I'm a fudd!
I'll go with your suggestion. I'll shoot a while with the fixed U and see if I like them. Fiber optic it is.