Talk:Laboratory/@comment-25993471-20150110173348/@comment-2170536-20150221022045

Just to be sure, I started a mini-account and leveled it up to TH4, then began the Barbarian 2 upgrade (6 hours) and immediately upgraded the Laboratory (5 hours). I set a timer and came back as soon as the Laboratory was done, and there were 59 minutes left on the Barbarian 2 upgrade.