The SIM isn't an incubator, it's just a substrate-free incubation box. You need to put the SIM in an incubator for results. SIM's are also having a bit of trouble with Hovabators, so they should, at this point, really only be used in cooler or fridge style incubators. Anywho, just FYI, lol.
Cheers,
-Matt
R.I.P. Steve, I'll miss you more than you could have ever known. I love you.