I tried an LED tracing tablet a couple of years ago. I found that the illumination was not even across the panel. There were lighter/darker stripes.
Recently, I have read about people using the newer EL type panels. Anyone having success with these?
I have a really nice smaller Altinak Flip Flat for my refractors. Works great. But, I need a large panel now for my 14". An EL panel would be much less expensive.