I bought a Suro 20 and did a test hatch. I put in 12 bcms eggs. Temp was 99.5 and held perfect. First 18 days humidity held 45. For lock down i set humidity at 65 and it held good. I only opend the bator twice once at lock down and this morning to get the 5 chicks out. Day 21 came and i got a pip and it hatched on day 22. Also on day 22 4 piped and hatched. It is now day 23 and no more i do hear a faint peeping in side. I know all eggs are fertile and i sold 12 to a gal and she hatched 11 out of the 12. I allways had 80 to 100 % hatches with my lgs and allways on time. I will wait a few more days to see what happens. After im done i will put a mercury thermometer it there and check to see if its reading right. I might just go back to using my Lgs. Any tips.