Has anybody tried using a Masso with just a plain old ordinary on/off spindle relay?

I found out too late that it's a REAL ISSUE on the Masso. No where in their advertizing does it tell you it ONLY works with PWM or VFD.

I spent 3 frustrating days sending an reading E-mails and trying what the Masso people told me to try. The best out come was the spindle comes on instantly while it boots up and stays on. The E-stop doesn't affect it.

Just wondering if anyone else succeeded in running a single speed spindle with this control.

At this point in the game I figure I have a $550 boat anchor.