Front/rear Iron Sight Width?

[rdtompki]

I just started to shoot IDPA and Steel Challenge with my M&P40. I'm an older shooter, 68, and wear progressive lenses. When I changed out the 40 sights for Dawson (black rear, FO front) I really debated on the front/rear post/notch width. The stock are .130/.140, respectively. I went with .115/.135 and I'm really happy with the added light around the front post. FWIW, I'm 6' tall with pretty long arms, the latter factor somewhat cutting down on the angular difference between front and rear.

I wonder what others are using for competition? My sense is that doubling the light around the front post will make for a faster, good enough sight picture for action pistol competition. I'm holding off on any raves for the fiber optic; the FO front sight on my M&P 22 (Dawson) works well under certain lighting conditions, not so much under others - to be expected.

 

[Waywatcher]

I use a 0.115 wide front with a 0.150 wide notch. Plenty of light. Also plenty accurate; can still hit 8" steel plates at 50 yards. Mine are on a Glock, but that part is irrelevant. I use them in IDPA.

Edit to add: I'm also just over 6' tall, fwiw.

 

[OKFC05]

According to Dawson, for front sights with stock S&W rear, .125 is for precise shooting and .090 is for pure speed shooting. I use .100 as a good compromise for IDPA and USPSA Production, which can have shots to 35yds for IDPA and beyond for USPSA.
www.dawsonprecision.com SIGHTS FRONT:Smith and Wesson Front Sights Category

 

[rdtompki]

According to Dawson, for front sights with stock S&W rear, .125 is for precise shooting and .090 is for pure speed shooting. I use .100 as a good compromise for IDPA and USPSA Production, which can have shots to 35yds for IDPA and beyond for USPSA.
www.dawsonprecision.com SIGHTS FRONT:Smith and Wesson Front Sights Category

I did look over the Dawson guidance, but I'm not sure they related the front sight width to the width of the notch. In any event the combination I'm trying is a big improvement over stock. I may find that an even wider rear sight would be a further improvement.