So I understand I can log any flight under IFR
No way! If you book out VFR and maintain VMC for the whole flight you can ONLY log it as VFR.
What I said in my previous post was if you go out VFR/VMC then encounter IMC you are then flying IFR and can log it as IFR, regardless of whether you've filed an IFR flight plan.
How about during my IMC training where the flight is a VFR flight- the instructor is looking outside, and has booked us out VFR- but im flying with screens up??? Can this be logged IFR???
For this I'd be inclined to log it in the IF column for training purposes (ie - Logging time towards a rating)
Couldnt I write the times for a IFR flight block to block if its under a IFR fightplan
Like I said - you don't taxi under IFR rules so you shouldn't log it as such. It's airborne to landing. I'm sure I read somewhere too that a flight plan isn't active until you become airborne which also backs up the theory regarding not logging times from blocks.