I'm a total amateur, in the middle of quite ambitious dining table build (red oak, 12x4 ft)... My 'shop' is very limited (I do most of the work with hand-held power tools), therefore I opted for using Kreg pocket screws and wood glue for the tabletop joints. I'll cut rabbets in the longitudinal boards (8/4 thick), to join the ends of 4/4 thick cross-boards during the final glue-up (see attached pictures). I was thinking about joining the cross-boards temporarily with screws only, cutting the ends to size against the straight edge, undoing the joints and join them again with glue and screws in the final assembly. My question is: would this affect strength/quality of the joint? Any input would be much appreciated, thanks!