I really like those low root flush head blum screws , I dont use them often but I have access to a 5x10 cnc , (and a guy that can make it go) so I give him my gables , he drills for the tandems , its so nice. I order maple dovetailed drawer boxes from Distinctive in Kitchener, they set them up for tandems , boom done. I can dovetail a dawer by hand , and own a huge Porter dovetail jig , but they make a perfect spaced drawer and it doesnt take three attempts to get it right .
I'm starting a quarter cut white oak vanity for the powder room , I feel like I'm cheating but Heldman in KW will veneer the panels in size so zero waste, We have a small pile of solids left from when we had a hardwood business ( long story) and the bottom drawers will come from Distinctive , they will custom wood them if I supply the wood . I'll make the two doors so i can claim I made it, there a rail & style bit set buried in the cellar somewhere