I just started rewicking the Subtank OCC's and for my first few attempts I think I wasn't putting enough cotton. The cotton slid very easily through the coil. It didn't pop, but it sizzled loudly and juice started leaking into the AFC. I rewicked today and increased the width of the cotton strip by about 50 percent. Cotton wasn't too tight but it was a little more snug in the coil. Will see how well that does.
Why not just use the rba deck? Its one of the easiest i ever built a coil on.