Re: Warre frames.. outside of Australia
I build my own top bars. I fashioned a tool to cut the comb loose from the hive wall to pull combs for inspection. I have very little trouble with bees attaching to the top bars of the lower box but when it happens I have to crack the boxes open and slide my hive tool across the top of the attached top bar.
I've never tried side bars but my concern is it would afford a hiding place for pests. Where I live SHB just love to hide anywhere they can.
Herbhome Farm USDA zone 7a