That's how I install all my foundation...using grooved top bars.I have put in many foundations and starter strips using a "Van Deusen Wax Tube Fastener". http://www.bushfarms.com/images/WaxTubeFastener.JPG
I find that they will draw foundation faster once they get it started. I remove frames from nucs every week to put in cell builders and I can tell you that the frames with foundation get fully drawn in a day or two and the queen already laying in it. The foundation less are usually only a 1/4 or 1/2 drawn out in the same time frame.Thanks very much.
I have another question:
Do you guys agree that in order to get a faster builtup, foundation will help?
As I see it foundation consists of a considerable amount of wax giving bees a quickstart. I also agree that in the long run it's better not to use them - far too much work for too little, not to mention contamination, diseases, benefit of small cell. In my case fast increase is the top priority.