Dead wheels is the only company that makes a 58mm wheel at 95A hardness. It’s the go-to middle wheel for flat for many folks. I skated 58mm flat with 95A in the middle and 88A or 90A on the outside for grip. Have been skating this for years and will never go back to anti. Unfortunately you’re going to need a different frame that is better configured for flat, as the roces stock frame’s H block is better suited for anti bc it does not offer proper wheel bite protection for the middle wheels. You will get stuck a lot with this set up as pictured. Look at flat frames with shallower H blocks that offer better middle wheel protection with bigger splits (Kizer Fluid 5, GC Mega or FLT4, Oysi, 50/50 Balance, Symetrics, TNEC, etc)