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Message: <blockquote data-quote="MassExodus" data-source="post: 71451" data-attributes="member: 4086"><p>Not really a window, just a rather short amount of time to get the spider and breed him successfully before he passes on. Sometimes you have to wait for a female's molt cycle, if they're close to a molt (some say within 6 months) they won't accept the male. So that takes even more time. (I'm waiting right now) Males commonly live more than a year after a ultimate molt, but sometimes they don't..so you don't know how much time you have, and you need to be as quick as possible and get as fresh a male as possible to raise your chances of a successful breeding. I've heard breeders say mm that were too old/close to passing were no good for breeding. I don't have enough experience at it to say if that's true or not. I figure if they make a sperm web and have bulbous palps, they're good to go. Oh and as to your first question, I have no idea. I think when people say penultimate male they're probably guessing? Maybe it's just a way of saying," fresh young male about to hook out soon."</p></blockquote><p></p>