I've recently switched from a bottom up to top down in a bid to stop changes from causing too much havoc. I've been diving into forums and I've picked up advice here and there (looked at a few models from Mauricio Martinez-Saez). I've put something together but it feels a little messy.
Essentially I'm trying to create a design that can be easily modified in a design table that will run smooth. Could someone please have a look and let me know what they think?