Hey listen. Yes, the thread's been done, and yes, taste will vary. But I do think these things can be very useful. Check out how I planned out my guitar with one of these:
...and this was the result:
It gave me a lot of confidence to make the mods I wanted to make.
The Fender one is very easy to use, but it's very limited. You have far more versatility using this one:
http://www.yajimastringworks.com/tct/yswtct-kisekae-e.asp