Ron, I had to. It was so hard and I really needed to get in and break it up. I'll go back once everything dries up and really work it over to smooth it out as well as rack, drag etc....I actually think it did a great job. The first time (thread) I worked at it for 2 hours and barely worked the perimeter, in this 2 hours I pretty much had it all done, now I need to smooth it out, lime the hell out of it and then work the lime in etc.....am I on the right track?