It's up to you if you want to try to even them out. It is a typical problem. I think they prefer one queen over the other. Sometimes the abandon one queen and move entirely into the other hive. You are fortunate this didn't happen...
I'm also going to be installing my first 2 packages in 2-3 weeks and would like to avoid this problem rather than have to fix it if possible. Would having 2 distinctly different hive colors/patterns help the new packages remember which hive they should be returning to? Is there another way? My new hives are about 8 ft apart.I just installed my very first two packages yesterday afternoon. It went smooth with the exception of cutting myself pretty good with the hive tool trying to pull the cork from the queen cage. I went back in today to release the queen and noticed that hive #1 had less than half of the amount that I had poured in the day before and hive 2 was the exact opposite. It looked as if it nearly doubled in size. The hives are just 2-3 feet apart. Should I be concerned about this or just switch the hives locations around to even out the numbers in the next few days?
Thanks