24 hours is ample as long as its not in a 50 degree room. Lots and lots and lots of clamps, about 2" apart. I use c-clmaps on the high pressure areas, fades, handle and tips and a variety of ratchet and spring clamps everywhere else. I have 34 clamps and use all of them every glue up. Alternate sides of the bow as you place the clamps. Ol Roy boy from PA has posted some nice pics showing this, he uses all c-clamps. You need to alternate sides of the bow so the weight of the clamps isnt all pulling on one side of the blank. TBIII sets quick when squeezed down, work smart but dont lolly gag or you will be in trouble. I dry run every bow I glue up just to be sure everything looks good prior to glue. I even place all 34 clamps.