by JMD » Fri Dec 27, 2013 9:13 am
The 'RD' model of the Head iSl is the full FIS Race Ski. The RD has a very stiff race plate underfoot while the non-RD iSL has a softer more forgiving plate, the same binding plate as the original iSS. The standard iSl model is really closer to a KERS iSupershape, just a little stronger on groomers and not quite as versatile off-piste. The RD is a great race ski but you may find it to demanding for skiing PMTS Movements all day.