Does the magstripe for Paytronix Cards need to be HiCo or LoCo?

For Paytronix cards, you can use either High Coercivity or "HiCo" cards or Low Coercivity or "LoCo" cards. It is highly recommended that HiCo be used for loyalty or repeated use cards. The magstripe is more durable and stands up to repeated swipes or possible demagnification. For single-use or infrequently used cards, like a comp card, LoCo would be fine.