Granite overhanging undermount tub
Our granite fabricator wants the lip of the granite slab surrounding our undermount tub to slightly hang over the tub edge. He says that it will help splashed up water to fall back into the tub. Otherwise, he says water will sit on the tub lip, slide back, and get past the layer of silicon bead waterproofing on the underside of the granite. He is concerned with making sure water doesn't get to the framing and plywood supports under the tub.
However, our tub has factory installed grab bars on each side by the molded arm rests. The bars only protrude 1 1/4" from the inside tub wall. It's already a bit dicey to grab the bar without our knuckles hitting against the tub wall. A granite overhang will eat up another 1/4" of that space (or more, if the fabricator doesn't watch his measurements all the way around the tub opening).
We'd much rather the fabricator back the granite away from the edge of the tub. Ideally, we'd like about an inch of the white tub lip to show all the way around (with the granite edge following the shape of the tub).
Are we fools?
Link to photo of the tub: http://www.tubz.com/americh-madison-6032-tub.htm