I have mine on friday as well. Of course I don't have much to say, but in regards to starting your time FAF: Prepare the Ts, do the Ts. Personally, before any course change or segment change on an approach, I'll brief the Ts for the next segment. Once you make that segment/course change, do the Ts just as you briefed.
For example (using
http://www.myairplane.com/databases/approach/pdfs/00546V12.PDF):
Inbound on the DRK 305 at 6600, I'll say something as such:
"At flag-flip, we'll do the Ts. Time - We'll start time at the FAF just in case we lose DME, we can identify the MAP. Turn - Maintain heading 125 after DRK, Twist - Nav 1 & 2 set to 125, Throttle - We'll descend to 5540' once we have positive course guidance inbound, Talk - Report DRK inbound."
Once we have that flag flip, bingo, I do exactly as I briefed...works great every time. You're also killing two birds with one stone here, since you're briefing yourself, AND teaching.
Anyways, this was probably unnecessarily in-depth, especially to a guy about to do his CFII himself, but hey...this is what works for me.