Tried the Big Dot - wide shallow 'V' XS "stack" sights and I didn't like them for shooting with accuracy. The WIDE shallow rear "V" makes consistent sight placement difficult & thus accuracy sucked.
There are other makes who make a traditional sight set with bright center dot & a lower set tritium "bar" or "dot" to stack them for night use.
You lose nothing for daylight use which will be the vast majority of your shooting & they seem just as fast at night.
My .02 cents as someone who went that route
Trijiccon, Meprolight & Ameri-Glow, & others make excellent durable night sights with many options for color or dot placement.
Bigger_Hammer