How long do you beeks build the comb guides on the top bars? Do you build them sidewall to sidewall or leave bee space at the ends? Trying to find the best option for my next hive build. I currently have about a 1/2" gap between bottom comb guide and sidewall but I get a lot of bulging honeycomb on the ends near the top. I am curious if I build the guides all the way to the hive wall if this will solve the problem.