I have to add my own caution about bottling spigots in here too. I had a bad string of infections that I tracked to bottling spigots. Beer was fantastic going into bottles; then slowly in a Kafkaesque way, things got progressively worse every day after packaging. Same off flavor would develop. Wild yeast I think. This happened over six months of brewing efforts.
I had been cleaning and "sanitizing" the spigots, even trying to pasteurize them, all to no avail. The few times I tried to take them apart, they developed leaks upon reassembly. I'm fanatic about sanitization, but readily admit to not being a great mechanic and tool person.
I couldn't find spigots that I could sanitize and reassemble to my satisfaction, so I switched to bottling from kegs when I have to do it. N'er a problem since, in four years.