Quick question for you guys. Every time I populate a board for SMD using solder paste, I end up having to do a fair bit of manual clean up with a soldering iron. I get solder bridges, parts in the wrong orientation, and general untidiness. I sometimes use ChipQuick low temp paste, and I've tried paste bought off eBay from China. My technique these days is to heat the board from underneath with hot air (doing from above makes it worse, with parts flying off, even at super low air flow!).
Is it technique? Solder paste I use?
Attached pic is with eBay paste, and I even used a stencil here. Notice solder bridges, misplaced parts, and like I said, general ugliness!