Hi all! I am looking into finding the perfect dimensions for a neck (all things considered) and it seems to be a bit of a rabbit hole scenario. I am going for the 20" fingerboard radius, and now want to start thinking about the best neck shape. Most of my playing is lead work and riffing -- I rarely do intense chord work and stuff like that. I certainly want to favor the shred aspect of a guitar when considering my options here. This will be for a 7-string as well. I am just curious if any of you can 'shred' some light on the idea of a super thin C, D, or U shape. Most of my guitars are Ibanez RG7420 and RG7620. I do have a Boden OS7 by Strandberg and that is my most played guitar right now. I do find it very comfortable--but it is very unique with its endur-neck profile ...I don't think another Strandy is in the cards for me tonight. I also own an ESP LTD BUZ-7 in snow white/ grey, which I thought was an Xtra thin U shape (the specs are done from ESP for the new model now--which doesn't specify, I think). I also have a Dean RC7X in white with graphics...I think has a slim D shape. I will have to sit down with all my guitars and do a tournament style neck-off. I also know that a lot of this will be heavily preference based---and that getting a super slim C, D, or U shape probably won't feel *too* different between the three. I was hoping that the lovely people on this forum could weigh in and help get me closer to the right decision. What are the real distinctions between the shapes? If I am making near paper thing varieties of each, will they start to converge to nearly the same feel? Help me in my quest for hot-rodding an axe. And if you have any stories, experiences, or guitar necks that you LOVE for the shred-stuff....let me hear about them!!! Happy Monday to all!