Some awesome tips and tricks here.  
Don’t mind the messy shop in the pic but here’s a couple of not so clear pics of my inverted tiller set up and scrape set up.  Essentially it’s a tiller tree turned upside down with couple pulleys at the top and one at the bottom to speed up tillering for the initial stage.  It speeds things up a bit between scraping and checking for tiller without moving the bow.  
Cheers