I have the P22 myself and searched for sights with a higher sight picture. Didn't find any, but ended up going with a laser sight. You can find the red laser sights for $120ish and the green laser sights for $150ish. Both show up in daylight, although the green laser appears brighter...
It had been 8 years since my last visit, and I must say, things have changed. Not all for the better. Still, I stuck around for 5 hours, met some great folks and even bought a few guns and some bulk ammo. I will be returning again soon.
Thanks for the warning! I had some Glock accessories to purchase at the 1500 and avoided his booth at your recommendation. Probably saved money and frustration.