I should probably respond to this, since I was the crazy person who initially made the suggestion to change it to 10 minutes on the delegates' list (I suggested it a few months ago).
For all fans of big multi attempts, I hope you'll forgive me - I feel a little like a traitor even suggesting it. And I have to admit I really doubt it's time to take my suggestion yet - I feel like we need more time before we really do it - I doubt we're ready yet as a community. But I thought I'd at least give my reasons for such a crazy suggestion.
1. Multi is causing logistical problems of various sorts. People who travel to competitions find it hard to bring enough cubes, which is apparently causing a number of top people to abandon multi. It is certainly a challenge to organizers to handle competitors with large numbers of cubes. An hour is a very long time to have to judge a single attempt. Keeping the cubes covered with so many cubes is a challenge. And there are certainly other issues I'm not thinking of right now.
2. Multi is the only event that's weird in that, despite our being a
speedcubing community, the event takes longer to do as you get better at it. That feels very uncomfortable to me, and makes it feel like it doesn't really belong as an event as well as the other events do. A ten minute limit would give the feel of a speed event, even at world-class levels.
3. The best people at multi are capable of quite a few cubes at 10 minutes. I strongly suspect the world record would be 10+ within a couple of years of our adopting such a limit. It's amazing, but people really are that good.
4. It would go along with the other suggestion I made at the time, which was to do away with stopwatches for timing solves at competitions. We could always use a stackmat. The stackmat would be the limit - it would be a nice clean breaking point. It would also give justification for never allowing 6x6x6 BLD as an official event, unless someone gets good enough to do one in under 10 minutes.
5. It could become a standard format (hopefully the preferred format) to hold multiBLD as a best of 3 event. I probably like this part most about the idea.
There are of course some very good arguments against this crazy proposal of mine. To be honest, I'm not sold on it myself - it was just a suggestion. Here are some of the problems:
1. Very very few people are capable of 5x5x5 BLD in under 10 minutes, which makes my suggestion in reason (4) above not such a good idea. My hope is that this will eventually no longer be the case (I really hope I'm sub-10 at 5x5x5 BLD someday - I'm working to try to get there someday), but we're certainly not there yet.
2. It completely changes the character of the event, invalidating some previous amazing results. I would hope that even if we do ever adopt this rule, we'd leave old results around archivally so that they're not lost forever.
3. The event currently is used by some as a way to get more than 10 minutes for a 3x3x3 BLD attempt; this would take that away. I guess I feel that 10 minutes is still sufficiently reasonable for most people to make it, and I don't think we need this extra option, but I know that some people disagree.
4. A number of people who can currently solve 2 cubes in under 20 minutes would no longer be able to reach the requirement of 10 minutes under such a new rule. I do have some sympathy for this perspective.
As you can tell, I'm not exactly a salesman pushing my idea, but I do think it has some merit.
One thing I'd like to point out now, though, is that the rules are currently such that, by applying a time limit to the attempt, an organizer could currently legally hold the multiBLD event under my proposed rules. If I have another Indiana competition this year, it's multiBLD year this year - I'm considering doing exactly this: ten minute time limit per attempt, best of 3 event. I think it's a nice format, and it will be interesting to see what kind of results we get.
Yeah, can a mod please correct it?
I changed one of the options to 20 minutes.