Suunto HR strap vs polar?

Do these straps crosstalk?? I will use a SRM wireless this spring and use a Polar HRM rollerskiing running kayaking. Anybody use these??

The Suunto HR strap for the T3c, T4c, and T6c have no crosstalk. They are built on a digital signal. I know that the Polar watches that start with a digital signal (thus no crosstalk) start around $400 where as the T3c is $189.