Re: Soldering tiny SMD's
I've been using a heat gun in conjunction with a Thermo-Couple thermometer. That allows me to follow manufacturer recommended soldering profiles by adjusting the distance between the PCB and the heat gun itself.
If you do a few 'test' runs with the thermometer alone, you get a general sense of which temperature requires what distance. You will be able to practically follow the soldering profile down to a few degrees.
I've been doing this mainly with Avago and Samsung power LEDs and it worked quite well. The only issue is the paste itself. It ain't too cheap, it's got a relatively short shelf life and you don't need much of it. I bought the smallest package, which was about 20$, soldered 20 power LEDs, and barely squeezed out 5mm from a 1/2in syringe.