I just got my new LBT hardness tester and gave it a trial run. Very easy to use and the results seems very consistent. I thought about getting the Lee tester which is cheaper but I didn't want to do a magnified check and interpretation of results. The LBT gives a direct BHN readout and is fast as well. Ingots fit the tester if not too thick but Veral suggests that the reading may not be accurate as ingots cool at an unpredictable and inconsistent rate. I realize that this is perhaps not essential equipment but I do like having it. I found what I have been casting recently to be about 11-12 BHN which is just fine and what I thought them to be. I tried it on some purchased cast boolits as well and found them to be about 18 BHN.
I am not affiliated with LBT in any way just thought to post my initial impressions.