I'm finding I have trouble with my wraps showing the individual threads even though I've packed the wrap and tried to burnish it and I'm wondering if the fact that I typically put a coat of varnish (using a drain tube) on the blank before I wrap could be the culprit. When I've finished wrapping the wrap seems to be packed tightly, but as soon as the varnish is applied the small gaps show up. I typically use FishHawk silk thread and the tension is firm but not so much that I can't shift the guide foot a bit. My wrapper puts tension on the spool rather than the thread and the thread only runs through a screw I before going on the blank.
All this leads me to wonder if the problem is that the thread is cutting into the varnish a bit even though the blank has dried at least 24 hours before I start the wraps. Thanks for your advice.