Ashgan said
I once proposed longer times between updates and yours truly declined. As far as I'm concerned I have no objections to a slower pace.
Beforehand, I had a bit more time than I used to, as I wasn't so busy with courses 'n whatnot. Now with courses + work, I'd be down as a clown for bi-weekly updates. That'd give me ample time to handle the meaty updates, and allow everyone to do tons of diplomatic actions.
That said, it did appear to be too much time in the beta, so I'd rather poll everyone on the matter before I make a final decision. A majority vote in favour of it [ 5/8 ] would suffice.
As for what ranged weapons are effective against which, you don't need to worry too much about match-ups. In game terms, crossbows will be effective against everything, while bows and longbows will be effective against everything except plate armour, as almost all weapons are less effective against plate armour.