I wouldn't use any other method either.. Look at this pic. I use cross stitch plastic canvas under the light diffuser grate as well. (it's easy to cut with scissors and only about $.60 per sheet at craft stores) It allows you to completely drench the hatchrite so there is absolutely NO fear of it drying out during the entire incubation time and the light diffuser grate will not sink in it under the weight of the eggs!!
I started doing this when I had the problem of the light diffuser grate sinking a little if the hatchrite was too wet. If it was too dry, I needed to add water throughout the incubation time.. Presto! Solved that problem completely.
OOOOOO OOOOOOO i like that idea! i use vermiculite and the light defuser, but now ill be adding this stuff your talking about!
thanks
spooky