Re: Splits: 2 or 3 frames??
Later tells you a lot more, no doubt about that. I have a bit different take. We check back at 3 weeks and yeah there can be a lot of question marks but we just drop in a frame of open brood and another cell anywhere there is a doubt (unless we have a visual on a nice looking virgin or freshly mated queen) and then just ignore them until they are on location up north about a month later. We expect to see in the 90% range at that point. The other advantage to the 21 day checkback is its an ideal time to analyze mite loads and do an oxalic or Hopguard treatment. I wouldn't do that, though, unless you truly determine a need for it.
"Ve are too soon olt und too late schmart."- A nameless German philosopher