Just checked the Ti disc bolts against standard ones.
The Ti are 4g a piece lighter than the standard ones so 4 x 12 = 48g. I've got my 49g deficit back.
Also had Ti caliper bolts for a while so that put's me slightly ahead of standard, but not dramatically. I'm staying fairly level weight wise but gaining upgraded brakes.
Hoping for the phone to ring tomorrow, so I can pick up the centre stand for the weekend.