Pcb double side

And since I've only started printing double-sided pcb's this year, I think there's plenty of room for improvement. I've tried the hole and pin method, and it was also not easy to get perfect alignment. Considering the effort involved ...

200-Pin Dual In-Line Memory Module;Non-Ecc Unbuffered;2 Rank Double-Sided Module;7.8 Us Refresh Interval (8192 Cycles Per 64 Ms);Auto & Self Refresh Capability;Pcb Height: 1181 Mil;Serial Presence Detect (Spd);100% Tested;Rohs Compliant ...