I got some af1s to try out. Just got done with some ventures, tried the classics in 44 and 55 before (liked the 44, didn't like the 55s).
They just feel like indys to me, I dont notice anything crazy with the turn, pop, or grind. They just feel like they stepped up the quality of the classics. I dont think they're worth 63 bucks but I'm enjoying them. the metal feels higher quality, and they have better kingpin clearance than the classics which I wasn't expecting so that was cool.
I still think indys are the best value for a pair of trucks. like 50 bucks and the hangers have a ton of metal on them, good kingpin clearance, good grind, good turn, lots of bushings. I think venture is close second because you can grind them down to the axle before you hit kingpin and they're like 40 bucks, plus on sale all the time.
I will say if you're a tweaker about ghost pop, which I too would whiff kickflips with indys on my board, the af1s seem to fix that for me. I'll probably get some thunders to try again next, maybe do the inverted kingpin on them, or get another pair of ventures or something. these are pretty good though.