Yes, I have an Impact X that was a .30 with PP when I bought it. I turned it into a .25 Slugger which was my intention when I bought it. I know the better choice based on Matt's video is .22, but I'm stubborn and was told that .25 was not a good choice for slugs, and that .22 and .30 were better. So I decided to get a .25 and see if that was true. Its not. I ended up shooting the .25 NSA 43.5 grain slugs like a laser at 895 FPS. BC of about 0.110. Gun is good out to about 200 yards. MOA at 100 yards with 5 shot groups.
My Renegade was/is the most accurate gun I've ever owned. Many times I shot it at 50 yards and thought something was wrong with the gun when I saw only one hole after a couple of shots. I think overall the Daystate guns are more ACCURATE than the FX guns for PRECISION shooting. My Red Wolf is more accurate than my Impact, both shooting slugs, and the .22 Red Wolf HP is just easier to shoot with a better trigger. I like both, but if I was shooting at 100 yards for money with slugs I'd shoot Bleu (my .22 Red Wolf HP).
I have a friend who is a VERY good shooter that was an FX fanboy, and had FOUR Impacts. About six months ago he shot a .22 Red Wolf HP, and was loaned one to shoot for a few months. Now he's all Daystate... I'd say if you're looking for a slugger to shoot out over 100 yards go with the Impact or Maverick. 100 yards and in definitely Daystate.