Anything over a 3 stop should be traction. Too bad the MRL's excluding the GEN2 are made with such inferior materials. I have ISIS and Synergy on my route and they are a huge headache. Im scared to death to walk on a cartop of KONE's hydro killer.
I thought you were speaking of a new install. You are talking about a existing unit you wanna change to this. Ive seen plenty of viscosity circuits on hydros over 3 stops.