When I'm about to complete a HF, I usually turn the area under the base to a small diameter with a parting tool, and then complete the separation with a fine tooth saw. Then I'll nibble away the sawed-off area with a chisel, followed by sanding using the drill press. I'd much prefer to reverse turn so that the bottom is finished as nice as the rest of it. However, I'm concerned that I'll mess-up the top when I reverse it. For anyone doing HFs, do you reverse turn for the bottom? What's your methodology so the top doesn't get damaged? Thanks.