Thank you for the info. I don't have probes any more as I pop my bp's but as a guess id say it is female if its the same as rtb feeling the void and counting the scales after the vent. It's in the 15 to 20 pound range and I'm 5'8" and it is a little less than a foot longer than me. I know adults run more but for a snake that has a rattle in its lungs and a inevitable vet bill I can't bring myself to pay top dollar. As bad as I want to save it and nurse it back to health I can't just throw money away. I'm already giving the flexwatt and dimmer and my time to hook it up just for the benefit of the animal and he will profit from that even if I don't end up with it.