not knocking anything, but why 6months? why not 1 or 2 and leave some flexibility? just curious.
If you schedule in six month blocks you get a stable schedule for the players to plan around and it allows future development a little breathing room.
Six months is plenty of time to develop and test a setup. It is probably enough time to create a new terrain and test it.
And it makes you look like you have a plan.
It takes away the perception that the AvA is the playground of a few selected folks who decide setups based upon personal preference instead of according to an established schedule.
With a six month schedule a setup that proves unpopular or buggy you have time to evaluate the reasons why and implement changes in the setup and still announce the change 3 months in advance.
A six month rotation with a quarterly schedule announcement allows an established rotation with the ability to substitute with three months advance notice. It would provide development deadlines so that any new setups would need to be developed and tested before the scheduled quarterly announcement.
Quarterly schedule announcements allow easy Spring, Summer, Fall, Winter schedule postings.
When requesting support from HTC one can provide evidence of what works and what doesn't and when a change or bug fix is needed. If you tell HTC you have a terrain bug that you need fixed for a setup scheduled 4 months from now one is more likely to get a fix than for one 4 days from now.
Six months is a long enough period that folks will look forward to a setup coming back. Familiarity breeds contempt.
Scarcity makes something more valuable. If folks know they won't see their favorite setup for 26 weeks they will spend as much time as possible in the setup. If one can come up with 26 different setups that are someone's favorite you start building a following.
Anticipation is a powerful motivation. The movie industry advertises movies months in advance for a reason.