I'm glad i stumbled into this thread. I can offer a little insight with regards to the rocketbladez..
As other have mentioned they are not blades... I have owned the clubs for a few months now and while the reviews are great for these clubs they arent quite for me.
I felt like the 4-7 irons with the speed slot or whatever they call it feels alot differnent than 8-gap. I could never get comfy with them and i recently sold them...
Im with you, a little lost in which iron to go after next. I work at dicks sporting good once a week and hit every iron there over time. Hard to choose something to replicate the feel you are used to. For now i managed to get my old irons back and will be sticking with them for a while
Go hit a ton of them..best advice to give i think