Got some Bones 93a prototype wheels and skated them for two brief sessions the other day. Didn't make a *great* impression, but the surface I was skating honestly seems tailor-made for an ultra hard 101a Spitfire F4. What I will say is that it is a noticeably soft wheel, like you can feel the softness with your finger, but it skates much better than one would expect from it. I just came off some newish F4 97a and my feeling is that this is a much better soft wheel than that. The Spitfires do a great job smoothing out the rough surface, but they have a mushy feeling and I found that they were terrible for slides. With the Bones wheels, they roll incredibly fast and smooth, they still slide (not great, but better) with a noticeable bark. Maybe they will get soggy with time, it's hard to say right now.
I wish I had got some of the 97a wheels. This is all speculation, but I think that this formula in a little harder durometer might be the sweet spot for me.
Yeah to be clear these are a crust tackling wheel, but coming from F4 99a they don't feel much softer to me. Like a hypothetical F4 98a at the softest.
As I've said in the thread, I haven't gotten to try the non-cored version of the harder duros but the 97a cored was really really hard feeling which is why I can't speak to what the formula feels like normally.
I will definitely try the non-cored 95a in the future, but the 97a is probably going to be too rough for these Midwest streets.
Like I've said before, the slide will take some time to get used to. The 93a are harder to initiate slides but it's a blessing in disguise because that also means they never slip out. On top of that, the slide is super controllable and won't slip out so you can really lean into that initiation without fear of it losing traction (something many other sticky wheels I've tried have been really scary because of).
Keep skating them and just work on your power slide form. Wider stance, a bit lighter on feet to help the initiation, digging with your heel (or toe for BS), etc. Once I figured out my foot position and weight shifting with sliding these wheels, they ended up being my favorite slide because they let you be a bit more careless than other wheels without issue.
Like they're hardER to initiate slides (than Stf 103 or F4 99) but not "difficult" when compared to other wheels... Especially since they have that huuuge margin of error without slipping out. You can be a bit careless with your force and not worry which I like.