TCSH vs tdb2913

I use TD DI and have held tdb2913 for a few years now using it essentially as my savings account. I’m just learning about TCSH now and wondering if I should switch to it instead.

Years ago I opted for tdb2913 over something like CASH because of td’s $9.99 stock buying fee (tdb2913 was instead free), but now that TCSH is one of the etfs that td now offers for no fee, I‘m wondering if I should make the switch and save slightly on MER.

Thoughts? Does anyone have any experience with either? Does one yield more? Similar risk? Should I make the switch?