You can extract with top bars, but as you said you have to be REAL careful, even more than with foundationless frames. If you can retool your extractor so that the "frames" are placed into splines or cages instead of free hanging in their braces, I think you could have more success, BUT I think the amount of comb failure suring extraction will make the work harder than it needs to be. I prefer cut and crush. Plus it kinda prevents the recycling of old combs which is a good thing from most points of view. The amound of honey that goes into making comb really isn't as much as people think. Yes 8 lbs of honey for 1 lbs of wax, but have you ever weighed the wax from a comb? There isn't a whole lot of wax. I can press the wax from one comb into a ball that I can hold with my fist. Nothing near 1 lb. I think 4 or 5 combs of wax might weight 1 lbs depending on how thick the comb is.
Scot Mc Pherson<br />McPherson Family Honey Farms<br />Davenport, IA<br />BeeWiki: <a href=\"http://beewiki.linuxfromscratch.org\" target=\"_blank\">http://beewiki.linuxfromscratch.org</a> <br /><br />Pics:<br /> <a href=\"http://linuxfromscratch.org/~scot/pics/bees/\" target=\"_blank\">http://linuxfromscratch.org/~scot/pics/bees/</a>