Betty, the best way to get those ridges out of there is with the brush. After you get complete coverage of epoxy on your wrap, lightly brush back and fourth as the rod is turning. It takes a bit of practice, but its the best way to get the epoxy smooth and even.

Nothing wrong with using heat to help when you put the brush down, but it can be overdone. Too much heat will ruin a wrap. I've found that 98.6 degs is all you need. Take a straw and blow CO2, it pops the air bubbles and does a final "smoothing" from the combination of air preasure and heat.

Happy wrapping. Daniel.