welp i used an exoterra incubator ....no holes in egg box, with a thermometer probe in egg box. thermostat was set at 94 because there was a constant 4ish degree difference from the egg box and what the incubator displayed.
But two nights ago, i heard a beep beep beep beep and watched as the temp display on the incubator rose to 140 F and the down temp button suddenly stopped working. I unplugged, replugged, turned it on "quiet mode"....turned it back on, etc. etc. and it would work for a few minutes and then beep up to 140 and stick there. Ended up turning it on and off by hand and monitoring thermometer while desperately trying to rig something up to keep the eggs in overnight....no such luck, ended up taking back to the guy who was incubating them for me while i waited for my be-all end-all exoterra incubator that broke after a week.
not feeling real optimistic about incubators.