You want the same 1/16 inch of joint compound between the tape and the drywall. I use a 5-inch-wide flexible taping knife to do this. You need to round off the corners of a new knife with a metal ...
Scrape it again when it softens. Holmes also suggests rounding the corners of your scraper blades with a file to keep them from digging into the drywall. After scraping, Holmes says you can patch ...