Hi All, I use Zinnser SealCoat after staining to seal the stain and reduce the number of wipe on poly coats afterwards. But when brushing as carefully as I can, I always get some runs and other undesirable surface defects. Even though I'm saving time with fewer coats of poly, the shellac coat seems to take too long to correct and smooth. Any suggestions as to what I'm doing wrong. I'm trying to apply as thin a coat as possible. Thanks in advance.