You should take the advice of increasing your vote multiplier for tribes you don't vote too often. You'll see by using the link @abh12345 quoted that you can have low STEEM vote mana but are most likely sitting with 100% idle vote mana for many of the tribes. Increasing the vote multiplier by 5 or more in some cases for certain tribes, can greatly improve the token rewards you receive and ensure that you are using up that idle tribe VP.

I increased my multiplier by x3 for my common tribes, such as PAL and NEOXIAN, and by 5 or 8 for tribes I don't see often like CCC or MARLIANS.. I even have a x10 multiplier for SPT (Splintertalk) as I don't curate Splinterlands posts as much anymore - even with that my SPT VP sits at 100% often.

My PAL and NEOXIAN VP now stays around or even less than par to my STEEM VP, and I rarely see a common tribe tag sitting at 100% VP anymore. I have also given as much potential as possible to earn better curation rewards from the tribes :)

If you do go the trailing route, use SteemRewarding.com as it gives you the best options and flexibility for setting up vote rule parameters that I couldn't find at SteemAuto and others... If you need help (the UI is not that intuitive) give me a shout I'd be happy to help you figure it out :)