I ride stock so thought I'd throw my two cents in. I'm pretty streety in terms of style, as in BMXy and I ride a 1085 Echo Control. For me, I find it reasonably easy to throw around and when I first rode it it seemed easier to spin than my previous 1065 Levelboss. Although I've been tempted to get 24" since the Inspired first came out. I think they'd be easier to pull them around, at the moment I sometimes have to add a cheeky pedal stroke to make sure I get a good rotation for 360s. Also I love seats. However then I wasn't sure if I was falling for this trend, that all the street riders were going 24" and although I've only heard good things about them I'm just not sure how much they would help me.
The reason I haven't got one is due to commitment, not being sure if I'd want to stick too it. But then really I should try and ride a few more to get a good idea. I'd say I'm probably do a lot more spins than most 24" riders but because I find it possible enough on my stock I've never seen a reason of getting one. If I did would defiantly be Inspired though.
And I defiantly think they should be allowed in comps, should probably enter with stocks since they are only 2" different.