Re: "need" to draw wax?
I too have been curious about the bees drawing comb in the brood nest prior to producing white wax anywhere else. I have a 2nd year hive that had two foundationless frames at the edge of the brood nest that I had accidentally broken the comb out of during an early spring inspection. Two weeks ago, I noticed that they had started drawing drone comb in the first empty frame adjacent to the brood in the lower deep, but the comb was not anywhere near white, but rather very yellow. Around the same time, I noticed a lot of irregular scraps of wax (not wax scales) on the floor board on the opposite side of the hive. I also noticed that there were a lot of bees in the one medium super above the two deeps that I had "checkerboarded" with alternating frames of capped honey and drawn comb. Those bees were concentrated right above the spot where I found the wax scraps on the floor board, and were not depositing nectar in the super. I still have not seen more than just a few wax scales on the bottom board, indicating to me that they are not yet producing new white wax in earnest. When they are drawing comb with new white wax, I am used to seeing a lot of scales on the floor. Based on those observations, I concluded that those bees in the super were "mining" old wax and were recycling it to draw the frame in the brood nest. Does this sound reasonable?
“Unthinking respect for authority is the greatest enemy of truth.” – Albert Einstein