Sorry but that's not the norm at all. You either got a dud or did something wrong. The vast majority of us love it.My Lemo 2 leaked like crazy. That may be the norm and I may have gotten a bad one.
And I'm of the opinion that if you want a single coil setup, don't buy a dual coil deck. Get a dedicated single coil and/or dedicated dual-coil.
And finally, yes... Trapping wire under screw heads is old-tech.