I'm not a real fan of FO sights, but I've learned a couple things I suggest people check out for themselves.
1. Color. My XDM has the amber/orange FO front sight and I hate it. Like a big orange basket ball glowing on the end of the slide. When I got my used Tactical Sport it had a green FO front sight. Great. When I saw the pistol I thought I'd be changing the front sight. When I took it to the range I found I liked it, so I left it alone.
2. Size/diameter of the FO rod (which the front side is made for). The FO rod on the Tactical Sport is a smaller diameter than the XDM and still plenty visible. Just right. Too big may be part of the issue with the orange front sight on the XDM, too.
Thanks for responding.
I'm 62 and the last five years my eyesight has really been changing. I quite using my irons on rifles and have switched exclusively to red dots or glass for competitions. I have tried multiple (expensive) approaches to prescription lenses that allow me to see both target and front sight. From 5-10 yards, maybe 15 yards, I can shoot defensive pistol acceptably. But for sighting on targets on the move that might be pushing 25 yards, I'm about ready to switch to red dots.
I've tried various colors and sizes, plus various color shooting glasses, over the past few years and have landed on fiber optics as the best compromise--it was an extensive experiment. I need to have my distance glasses on period, and finding a way to see a fuzzy set of pistol sights has been problematic. I happened to take my P-01 with front and rear fiber optics (front red, rear green) to the outdoor range the other day, just for some close in shooting after I sighted in a new red dot on my Scorpion pistol, and was astonished to see the difference between light gathering in the optic between indoor and outdoor ranges. Kind of a "duh-uh" moment, of COURSE that will make a difference, but I had't realized it until now.
I have a large orange site on my P-09 bedside gun (Fission site) and it works well enough indoors at close range, but completely washes out with my prescription. YMMV.
So, the quest for fiber optic rear for my SP-01 Tactical, my competition pistol. If it doesn't work I'll sell off most of my pistols and just get the spare SP-01 slide milled for a red dot and call it a day.
Such a process man, such a process!