Thank you for the responses.

I decided to answer my own question, and tried a sanding screen last night. For the record, don't bother with them. It started out fine, but became dull very quickly, no doubt due to the small surface area carrying the abrasive. The screen might be good for cutting through the initial glossy layer, which might have some blush. I used the screen with water to clear it, it held up fine to the water. Things seem to move along much better after I cut through that initial gloss.

I do use a shave hook type scrapper to initially remove runs, drips, and bugs. I have cabinet scrappers, but have not developed much skill in sharpening them and putting on a good burr with a burnisher. I like to sand with a long, slightly flexible sander to get things really smooth.

Thanks again.
Ken F