The standard, as I understand it, is four. Perhaps that would be the direction we should take, then, if we're worried about having too large a subcommittee: move it back to four and have that as the subcommittee. Then we can have the quorum at three and be guaranteed that there will be representation from one of the opposition parties. It's simple enough. That's parliamentary procedure. I'm willing to go along with the standard procedure as well.
In the last session we did have five, and I don't think it really caused us any grief, but this is a new configuration in Parliament and perhaps four is more appropriate. If the committee doesn't want to have a larger group, then let's have a smaller group.