Ok I'm in the midst of swapping my JDM B Series out for either an H22 or F20B.

My options, complete H22 Swap including LSD H22 Trans
OR Doing an F2B swap using my LSD B series transmission and running an F20B Dohc

Heres my questions, what are the advantages and disadvantages of running OBDII with the F20b opposed to OBDI?

Are Honda OBDII ECU's flashable like Subaru and Mitsubishi?
Is there anyway to run the F20b with the OBDII ECU? What wiring would be involved? I know I would need a jumper harness, but what else?

If I do the F2B Swap, I plan on running OBDII until I can save a little more cash for Hondata S300 and convert it to OBDI.

Any advice, what would the driving experience be like? F2B opposed to complete JDM H22 LSD Swap?

I know someone has done this......