I have existing Fischer telemark skiis with 3 pin Rottefella bindings 4 screws. So, will these screw on using the same screw pattern & binding bolt onto this top plate? What affect does the 20 mm space have on performance?

Tech Specs:

Material:

Nylon, tempered aluminum 

Shim height:

20 mm 

Compatibility:

Voile bindings, other brands with adapter kit 

Weight/pair:

2lb 1oz (940g) 

Warranty:

1 Year