Originally Posted by sherburn2LA
Lots of questions to follow on 61.75 implications of flying with an instructor to maintain proficiency.
Without a valid UK medical then your FAA 61.75 cert is obviously invalid unless you happen to hold a FAA Class 3 -without any medical restriction.
You can fly with an FAA CFI to maintain proficiency but you cannot log it as PIC.
As and when you get your medical back you may need to undertake a BFR if beyond 24 months. You should inform the CFI in advance regarding the lack of a medical.