why not just hold fskax as opposed to vtsax in vanguard (in a tax sheltered acct e.g. an ira?) edit: SOLVED thanks yall for your endless patience!!! i knew fidelity charged a fee for vtsax, but, bc on vanguard’s fskax page it says no purchase fee, i thought there was no fee – but vanguard taught me there is something on the page called “TF funds” so there IS a fee. THANKS!!!!! i appreciate you so much. i’m asking you questions as a beginn…