Here is my 2 cents on the profile subject...First, let me just mention Sculpted SA is my favorite SP profile., as a designer as well I know the profile really is/can be made an integral part of the overall set and theme. Personally DSA really seems to be the most fitting profile, thematically speaking. After doing a little research on the keyboards that you are basing this on......it would seem DSA is the most obvious choice, as the actual keyboards have a profile very similar to DSA from what I can tell. There is also the fact that this will make a lot of the child deals much cheaper (I know Colemak/Dvorak support is important to you) because you don't have to worry about Rows in the design. DSA also gives you more options on material/legend tech than say SA would as well.Finally, I think its great that you are reaching out to the community for input on this! I will encourage you though to stick to your guns when you make a decision, especially if you think it is essential to the design in some way. Just remember that you cant make everyone happy