r,
i also use single deeps with medium supers and it is definitely a catch 22 for a second year colony. i have also observed as have others (especially here in the southeast) that the bees will not normally draw new comb until the main flow, which comes
after swarm season.
i found that frames of foundation put in before the main flow were just ignored and actually hindered the bees by breaking up their functional work space, and if anything caused swarming more than prevented it.
i did find however that the bees will draw foundationless frames earlier than the main flow, and as matt suggests may help with swarm prevention by getting the wax makers busy.
i have finally got to the point this year of having enough comb plus i left enough honey last fall to configure my hives in the way that walt describes in his manuscript. i've got all but two checkerboarded at this time and hope to do the other two tomorrow.
here's what i would consider trying:
1. get some foundationless deep frames and when your deep is approaching getting filled with bees place a foundationless frame at the side of the broodnest. check it in a week or so and if they are drawing comb on it place another one on the other side of the broodnest.
2. you could also try putting some foundationless medium frames in the supers, but i do prefer to use the plastic foundation there because i spin them hard in my extractor.
3. if they don't burn through those stores in the super by the time we get into the better flows you could extract them or set them out for robbing and put them back on as you have contemplated.
4. as david suggests, you could plan to split and make a nuc just prior to the main flow in effect creating an 'artificial swarm'. find the description of the 'cut down split' on mike bush's website for a method that has worked really well for me.
5. if you don't split, inspect every 10 - 14 days for swarm preps as described by walt and be prepared to split if you find them preparing to swarm
6. consider setting out a swarm trap or two using a medium super for the trap. if you catch any just keep adding mediums as swarms will draw wax in a hurry and provide you with several supers for use next year.
once we get to 'new white wax' you should be able to add your supers of foundation and get them drawn. i'm going to try melting my cappings from last year and coat the plastic foundation to see if they take to it faster.
good luck!
