You are wise to be cautious, I like your idea of introducing a shed skin to change the mood from feeding to romance. I recently had an incident, a feeding response I think, the first time I have seen this "agression"...puncture wounds were superficial because I was there when he shot out of his box like a javelin and clamped on to the late breeding female. I know some guys say their males turn off the feeding when in a breeding mode, but not mine... Timing is everything, and I have left them together for a week at a time, but no longer will I do that, the consequences of missing a queue and having a female bit up are too great, and it will really leave you singing the blues if it happens. I also think best to introduce several hours or a day later when feeding response is minimized. Vic