Hi just wondering if anyone has used one of these incubators successfully? I have one and I really don't know if its working correctly? I have adhered to the instructions religiously yet the temp never stays where I set it. Even after a reset. It hovers around 26c yet I want it at 28c.I have already lost a few eggs to mould which I suspect is due to unstable and fluctuating temps. Has anybody else any ideas?