Which one do u use and why? I use the standard one with u shape blades, the blades are rubbish now. Years ago back in 90's they were hard to bend and lasted a while. Now they bend an last about 6 to 10 mts on non slips.
I use my turbo groover for all smooth products check it out here http://www.turboheatweldingtools.com/ best groover I've ever used pricie but well worth it perfect seams every time even in Lino its quicker than a power groover plus it goes wall to wall and round curves and circles with the greatest of ease. For safety products I use the trusty straight edge and altro groover, I find the blades for the altro groover to be much more durable than any others and last longer.
