Vesc to motor Amperage

Im looking into new evsc because I cant get my Enertioon focboxes to power up. A problem for another time. Now im looking at Maytech, MTVESC100A VESC4-based Speed Controller with Aluminum Case.
https://cdn.shopify.com/s/files/1/0089/3065/6320/products/MTVESC100A_6.jpg?v=1565154672
Im running Hobbysky 6374 170KV 190KV Brushless Outrunner Belt Motor Sensored. Not the best motor I know but its what i started this build with.
also my Battery is a Torque Board 12S4P BATTERY PACK (SAMSUNG 30Q).
So my question is how do you know what motor amp rating to pair with what vesc amp raiting.
I feel that if i go with the higher amp rated vesc, like 100amp it will be better thangoing with say a lower rated vesc. Am i wrong for thinking this way.

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I am not an expert but I’d say that it would be safer to use a VESC that can withstand higher amps than what you are going to put it through in average. I read many times that we rarely see higher than 40-50 amps per VESC.

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