SUrley if the male is properly rotated and has the correct rest period inbetween he can go with as many females you are happy with during the season as im sure to him he doesnt mind if hes seeing the same 2-3 females every few week or so or lots of different ones. Id say as long as his health doesnt seem to suffer (which you would monitor anyway ) Chuck him in with as many as you are comfortable with.. Hell let you know when he isnt interested anymore

Lucky snakes 1 guy to 12 females... We humans have got this all wrong you know