I have two tubs both on different types of UTHs. I'm assuming they perform on different wattages so hooking them both up to the Ranco will lead to one of them being unbalanced. I'm assuming the Flexwatt heats up faster than the zoomed that being it's probably better, and it's newer. What should I do? Is it okay? I knew I should have bought two flexwatts...

Is it okay to hook both different mats to the same T-stat and assume that the temps would be the same by measuring just one? I can probably play around with it by adding layers of newspaper and measuring the temp for the one without the t-stat probe.

Should I just get another FW?