I have 2 Mark IV Lites and a Mark III lite. All have been excellent accuracy wise, but the Mark IVs are getting the VQ accurizing kits. With a red dot, these are just way more fun to shoot. All 3 shoot smaller groups than my Browning Buckmark Hunter and Camper. None come close to my High Standard Citation.

Just my opinion, but get the red dot mounted as low as possible. That means getting rid of the Ruger rail. It makes a difference in finding the red dot quickly and it makes a big difference in flattening the trajectory curve due to being closer to the bore axis. (it also gets rid of that big ole screw sticking out the side if you use the Fastfire base.

I used Madd Macs base because it is the thinnest base out there, high quality, and it fits both the Fastfire and the Venom.

I can show you pics, but the file is too big to post here and I don't know how to make it smaller.