I always get my logbook signed by the FI...for the very reason we're talking about. I don't care if the logbook looks messy or not, does it really matter? Besides as the customer paying the FI for their services, I think it is the least they can do to avoid any confusion later on.
If I happen to do a "club checkout" in month 13 of my 2 year period, it makes sense to get the logbook signed so you don't have to go back and do this extra 1 hr training flight.
Will an FAA BFR count for this 1 hr requirement I wonder? and if not, why not, seeing as there are established procedures for the FAA BFR which are not open to personal interpretation.....Maybe I'll fire one off to the CAA and ask, seeing as I end up doing an IPC every year and a BFR every two years anyway (through my choice)...