It's not about the method you use to get that period of queenlessness, it's about the timing. You want them queenless two weeks before the flow. I'd settle for immediately when the flow starts too, but two weeks before is perfect. It will actually INCREASE your honey production significantly to have a broodless period right as the flow starts. If you make them queenless you also get a new young queen out of the deal...
http://www.bushfarms.com/beessplits.htm#cutdown
I don't have Varroa issues, but timing this correclty can greatly enhance your honey harvest if you have the time to mess with it.
http://www.bushfarms.com/beessplits.htm#cutdown
I don't have Varroa issues, but timing this correclty can greatly enhance your honey harvest if you have the time to mess with it.