Another tip for both of you would be to use a heat sink, just put a large stone or two in a corner. When using a thrown together bator it'll help maintain even and constant temperature and reduce temp fluctuation :)
Thats high humidity for 18 days....you will have fat swollen chicks that cant move to pip the egg. 60 degrees is hatching humidity.
I'd put the eggs to your ear, if you hear and chipping or peeping start looking to give them...
Honest dude...the reflector is acting like the sun. Always work on controlling the heat with a low watt heat source. It's easier to raise the temp than lower it. Plus, low temp will only delay your hatch.....If it has potential to...
Judging by the brooder lamp, it might be a bit on the strong side. I've made a few now and I always start with lots of ventilation holes and a week bulb....this gives you scope to control the humditiy by blocking holes and increasing...