Work around for 1 year search limit on CalDAV calendars?

Question

By researching a couple of forums and doing some of my own testing I seem to have confirmed that if a calendar on an iOS device is synced "over the air" (CalDAV) then Calendar and Spotlight search will only look 12 months into the past - regardless of how many months/years of calendar data is actually synced.
If a calendar is synced via iTunes this limitation does not seem to apply.
Accepting that this is the case, my query is what is the least onerous way to:
a) Be able to search 2-3 years into the past and
b) Have additions/changes that are made on the iPhone/iPad immediately sync into the cloud server
The specific scenario I have (for a client) involves Outlook 2010 on a Windows 7 PC syncing over the air using iCloud.
My first thought is to maintain a separate calendar in Outlook for items more than (say) 11 months old. Have that calendar sync via iTunes - on the premise that it it is unlikely to change very often. Then once a month (say) manually move the 11-12 month old items from the CalDAV calendar to the iTunes calendar.
My second thought is to simply sync the same calendar both over the air and via iTunes and live with the duplicate entries.
Does anybody have ideas that are slightly more sophisticated and/or elegant than this?
Thanks in advance,
Graham

Answer 1

That's a bit sketchy. There's a much simpler way around the Volume Limitation. That's removing it. Just set the Volume Limit to its maximum, and it's virtually gone.