right, asymmetric port timing is possible with rotary which is rad. the vespa-ciao.nl thread suggests that anything over 200 is gonna give you a pretty narrow power band, but it might be possible to compensate for that with good variator tuning.
i do not think i am going to bother port mapping my cylinder to get it exactly right, honestly. going to take those numbers into consideration in order to get a ballpark figure and err on the conservative side when i get my grind on. (edited)