Posts marked read options

OK...a few days ago I changed the way that the forum works in regards to when it marks posts as being read. It appears that most people liked it better the old way. The way it is now is a much more accurate method but it makes absolutely no difference to me and I can change with back in about 2 minutes. So just to ensure that I am listening to the majority, please vote on which was you like it.

Now the old way and the one that we would be returning to works like this:

Inactivity/Cookie Based - once a user has been inactive for a certain amount of time (the value of the session timeout option) all threads and forums are considered read. Individual threads are marked as read within a session via cookies.

The new way it is now and has been for the past few days works like this:

Database (automatic forum marking) - this option is the same as a previous option, but forums are automatically marked as read when the last new thread is read. This is the most usable option for end users, but most processor intensive.

What do you use for a carb sync tool/gauge? Now that I know how to sync the carbs (I think!!!!), I need the vacuum tool....All suggestions welcome, whether I need them or not!!!!..............."Ride safe with wind at your back on a sunny, summer day!".......