I have used both the Pro Fitter and the Skiers Edges and have done so since 1985 for the Pro Fitter and since 1988 for the Skiers Edge. They are both very useful tools and to a degree serve somewhat different purposes. That said, they are both very valuable to help improve balance, stability and power as it relates to any lateral movement sport, especially skiing.
You need to know I am in a unique position to have used them both because I developed the PF after double foot operations (1982) and a knee operation (1979). The PF was based off an Austrian Design that had independently flexing/ rotating food pads and a 4-cord resistance system. After working with that product for over a year, and talking to lots of Physical Therapist/ ski racers and Trainers, I decided to improve on the design to make it more versatile. We made it easy to add or subtract tension cords, used 2 mounts under each footpad and reshaped the arc to create the feel for serious skiers.
The other developments that the Fitter Team lead were the attachable platform for trunk and upper body exercise as well as the non fixed balance aids for people with limited balance skills. These developments came along because a number of users asked us to add these features and accessories to make the product even more assessable to a wide range of clients.
The Skiers Edge first came out 1988 with a non-rocking metal arc, a large elastic resistance band system and single plane footpads that were linked together. This product was similar to the 1960's Ski Tone, which was an arced base with a big rubber band attaching the 4-wheeled platform.
The key differences between the 2 include:
Rocking base Non-rocking base
4 small bungie cords Two large rubber cords
Rotating/flexing Pads Single plane pads (original model)
No Balance aids Balance Ski poles recommended and supplied
Weights 25 lbs Approx. weights 50 lbs depending on model
Both products were launched with a MSRP of $400 to $600.
Today the PF design has changed a fair bit to include footpads at either end to allow many different Functional exercises. This product sells for $600 on line.
The Skiers Edge has had dramatic changes including various sized arcs, handrails, and different upper and lower body attachments and a few different names. It is priced in the range of approx. $1200 to $1800 depending on the model and the options you choose.
I have used booth as recently as last Nov at the World Cup Downhill at Lake Louise. The biggest SE is a real leg burner and can be a big cardio tool if you push hard. It is still provide with poles to help you keep your balance.
The PF is more of a balance and skill building tool that can offer cardio and leg burn out if that is what you want. The PF is intended more to improve efficient movement and a quite upper body. It does not include balance aids and encourages the user to increase the degree of movement based on skill set.
Both are good products and both will help any user greatly improve lateral movement and strength. The questions you need to consider might include size, price, and versatility.
I wont say that one is better as you will find lots of folks who love to train on both. You can check out either website www.skiersedge.com
. Hope this little history commentary is helpful.