Good! That's what I am aiming for - a sensible discussion on ways and means as to how BCA might move forward.
The 2-house system was put in place originally because some constituent bodies didn't seem to like the idea of their members voting independently of them. (Remember that in the earliest days of NCA there was no voting at all for clubs, let alone individuals - the only votes were held by the constituent bodies! We had a real fight on our hands in the 1990's to get clubs to be allowed to vote - and that was just the start.) The 2-house system seemed to be the fairest way out at the time it was put in place when BCA came into being in 2004 - but maybe you are right and it's now about time for it to be replaced completely by individual member voting.
However, I tend to think that we really need to have individual member voting by electronic means up and running properly before we discard the old 2-house system. At present, with AGMs rotating round the regions and people reluctant to travel for hours just to sit in a meeting, it is perhaps all too easy for policies to be totally swung one way or another by the individual members actually present and voting at the meeting. I could be wrong, but I'm of the opinion that the 2-house system probably tends to stabilise things because you are more likely to get an overall view from group representatives. These are likely to be people who know how things work in their region and are also aware of the different way things have to work in other regions because they have sat and discussed the issues, either in BCA Council meetings or, where they are a nationally accepted specialist body (e.g. BCRC or BCRA), in their own national meetings.
So, if we agree that we want to switch to individual member voting and do this by electronic means, we probably need to re-think the way AGMs are run.
One way would be, as you suggest, to have voting before the meeting - but in that case, what's the purpose of the meeting? How can you have amendments to proposals - that's if you agree that you need to allow amendments.
The other way would be to have "confirmatory" votes after the meeting - but that probably pre-supposes that BCA Council takes a much larger role in organising proposals and sorting out possible amendments and difficulties well before the agenda goes out with proposals to vote on.
I've heard a number of people saying, "... BMC does it OK so why can't we do it like they do ...". So is it worth considering in detail how BMC and other similar organisations organise their AGMs? It really does seem worth thinking through very carefully all the implications and potential catches before we launch out into our brave new voting system.