Hi, I'm presently on page 52 of the K2 manual and step 7 says 20 turns of red wire on a FT37-43 coil. I wound it but it's almost too tight to weave the 5 turns of green wire in between the red wire. Looking at the pictures on Elecraft web site shows T7 with 11 turns. Is it really 20 turns? Thx Roy Vickers