Ah, good, a man that does as he is told. Now package them up and ship them to me for further evaluation as I have never seen ERC so clear before!!!
Young bowyer made me a 63# @26" ERC longbow that was 66" tip to tip. There is a slim strip of purple heartwood down the very belly. I don't think it takes much heartwood to do the job. I wonder if ERC will behave like yew when you violate growthrings. To play it safe, you could take down the sapwood, back with very thin rawhide, and finish out from there. As for heat corrections, I think ERC should do just fine.