I have Dawson FO on 2 guns, a S&W627PC and I just installed one on my DW Valor about 2 weeks ago. Great front sight.
When I put the first one on my 357 I swear I was trying to figure out where the battery was the thing was so bright. Yes, hyperbole but they are that bright. I have a few other FO sights on other guns that aren't as bright and having alot of extra FI rods in the range box I got some out and practiced on making up new rods paying particular attention to the ends, melting them to get a big smooth rounded end and it helped alot on a fee, others not so much.