As your annual allotment credit amount goes higher MF per credit goes down slightly. Really small accounts get dinged the highest MF per credit. It’s also wise to make sure your account size is close to the end of that MF credit bracket. I originally had a 21K account but that had me just a few credits to the next bracket. I later added 6K to that account to drop my fees on the 6K account and put my new 27K account at almost the end of that credit bracket to get the most efficient MF.
Below is MF chart for 2019: You can see 2018 cost and 2019 cost. I only posted amounts up to 135K size accounts.
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Also if anyone is interested I do have a 12K WM account for sell on WMOwners under same user I’d as tug. Trying to par down my WM and Wyndham holdings to offset my added MF for two Hyatt’s I recently purchased.