What are your opinions on using Loctite / grease / antiseize for stainless Phil Wood bb cups in a titanium frame? The people at Phil Wood adamantly say that some thread retaining compound like Loctite must be used. However, I've heard that ti and stainless steel is a bad combo, and antiseize must be used. What are your thoughts?
I work with Ti every day on our company aircraft. It is as likely to gall threads as stainless is, which is to say that it is a good idea to use some form of thread protection. The combo of stainless and Ti works very well and I do not expect you will see any problems.
Remember that lubing threads is necessary with stainless or Ti. Also remember that most forms of threadlocker do much the same thing as thread lube during assembly. Plus, liquid, anerobic threadlocker will do a good job preventing any dirt/corrosion from getting into the threads over time. This makes disassembly possible after many years vs. a corroded setup.
Most forms of loctite will soften with heat. So, a heat gun or a soldering iron will help on the small fasteners.
I believe this is a general maintenance question but anyway, I would just use anti-seize or in a pinch, grease. don't try to cheat and only buy one tool because its a lot easier using two phil tools to install their BB's