Two things where I could use an opinion :

-My LBS (not a Specialized dealer) re-cabled the hydraulic discs on my '16 Elite Carbon. I guess they didn't test ride, as the front (less) and rear (more) brakes squeal like an angry pig , and could be heard from blocks away.
The weird thing is the noise is coming from within the frame itself, and not the rotors. I'll be returning it, but any idea what's going on in case they're stumped?

also,

-I'll be upgrading the wheelset in the offseason. Originally was going to go down from the stock 30's to 28, closer to what I've been riding for decades. But after riding an urban rental with fat tires I was amazed at the ride comfort, and will go up in width, considering our crummy chip/seal roads and the occasional dirt/gravel on my recreational riding. Anyone know the max width for that bike? I'm thinking of 32's-- I've been told I could feel a difference. Also think I'll go tubeless as recommended for lighter weight and fewer punctures.