Yeah J, im convinced the esky is what killed mine, well that combined with being put in the sun for an hour, the esky really pushes the temps up so high, so I have ditched my esky. I moved to a large cloudly clear type container had the cfl lamp in the middle and mostly covered the top in clingwrap, gave it a light spay here and there, and the temps came down to low 20's with humidity averaging 80%. And every single seed I put in there germinated. It was free from using what was around here, and the conditions are perfect, so I just hope it has the same result for my new clones.
What are you using to try and root your clones??