Sometimes the trub level is higher then others. what you really want is an adjustable racking arm. But I find that all these spigot type things make cleaning and sanitizing much more difficult. Eventually you will end up with an infection and it may be several batches before you figure out the problem.
Bah! It's one plastic nut. Rinse, bottle brush, and into a bowl of no rinse sanitizer.
As to the minuscule amount of trub that gets transferred, it's into a secondary carboy or (in the OP's case) a bottling bucket.
If to a carboy, it becomes part of that thin film on the bottom that is far more precipitate from the beer than xfered trub.
If to a bottling bucket, well, it's got another spigot an inch from the bottom.
Yep, as would letting it drain from the spigot, so definitely +1 on the racking cane or autosiphon.
Also, parts (e.g. spigots) sometimes fail. Would hate to ferment in a bucket w/ a faulty spigot and find your precious nectar all over the floor.
Double Bah! Twenty years, almost as many buckets and never a leak.
oh...and attach a hose to the spigot. It creates no more aeration then siphoning.
I'm not saying the spigot is better, but it's no worse. I believe either way will give nearly identical results.
To each his own. For my equipment, in my kitchen, with my beer, I prefer the spigot.
But that's part of the beauty of the hobby. Ninety nine per cent is nuance. What's best is what works best for you. The only four absolutes (in my opinion) are sanitize, sanitize, sanitize, temperature control. Outside of that, RDWHAHB.
(parenthetical PS: I'm not trying to be too confrontational here. I realize a lot of subtleties of communication are lost when reduced to the mere written word. I am considering this a light hearted, friendly debate. My apologies if I seem to adversarial.) (Oh...and I ramble when I'm drunk.)