I am reading up on
DVC and have read that for some use year doesn't matter but for others it does. I would travel most of in April. What use year should I have?
The idea would be to give you as much time as possible between your trip &
your banking deadline or end of UY in event of late cancellation

.
But you'd still need to cancel a reservation AT LEAST
31 days BEFORE check-in date in order for those points to
still be bankable
( cancelling 30 days up to 1 day before check-in results in
points going into Holding Status & you can't bank the pts
even if your banking window still open; a cancellation
of 30 days or less results in having to use the points before that Use Year
ends or you'd lose those points ).
Besides April are there some other months you may, in future years, want to travel? you may want to take into consideration too when deciding.
Jmho, for travel in April I'd pick April Use Year - banking deadline is November 30, last date of UY is March 31; example
on April 1 2009 you receive 2009 Use Year allotment of points available for stays between 4/1/2009 - 3/31/2010 &
you have reservation for April 16, 2009 using 2009 UY points & it's cancelled on March 16, 2009 latest (31 days before check-in) then
you have until November 30, 2009 to bank these points if you wish or
up until March 31, 2010 to utilize them for new vacation.
If April 16, 2009 reservation is cancelled March 17, 2009 - April 15, 2009 the points wouldn't be bankable (it's only 30 days - 1 day before checkin) BUT you'd still have until March 31, 2010 (end of 2009 UY) to use these points for another reservation.
December 31 2009 is "last check-in date" you'd still be able to bank April 2009 UY allotment of points at minimum of 31 days if you cancel that reservation at latest November 30 2009; MS would cancel & bank those points in same call as you'd be cancelling 31 days before check-in and Nov 30 2009 is last day you're able to bank.
For travel January, February or March : April Use Year wouldn't be as good a choice

because a trip during these 3 months cancelled later than Nov 30 2009 is past your banking deadline & you'd have to use or lose the points by March 31 2010.
Good luck with your planning
