Hi Nigel,
I wouldn't mind switching to only electronic voting, but I don't have a strong preference.
I do agree with the board that voting should only start after the presentations. I don't see a benefit in allowing voting by people not in posession of all the data.
The length of the voting window seems good to me, but I'll leave that to the people more affected by it than I am as I am usually at the meeting itself. I haven't missed a RIPE meeting in 10 years ;)
Met vriendelijke groet,
Sander Steffann