Q about bindings...look titaniums

I was going to get some Look p12 FR with the wide brakes...but was thinking of paying a few bucks extra and getting the titanium bindings...are they a lot lighter and more durable? what are your opinons on the titanium bindings versus regular..

also check out these bindings:

http://www.proctorjones.com/pjonline/product.asp?s%5Fid=0&dept%5Fid=11450&pf%5Fid=081&mscssid=LKH1CXPW8V049M7WNA0XPT1GSBUJ9DC7&

They look different than the normal scratch and p12s and was wondering what the differences were...they look like they don't have a pivot heel on them which is very important to me...thanks


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