Nope, still having problems with the rear brake Gonna have to swap the E4 caliper with an X2 caliper. Luckily a friend of mine has one, in purple, which he's happy to swap for the E4 so I won't have to buy another.
They replied to the email saying it looked awesome (I sent them a snap of my build over) but kinda missed out the fact I said Hope 4 pot doesn't fit. Kinda tempted to try and machine out some kinda bracket. Though it might be more effort than it's worth.