Campagnolo EPS, worth the weight penalty?

[earlfoss]

I am strongly considering getting Campagnolo SR EPS to build up on a new custom that is in the works.

Mechanical SR comes in at about 1.6 lbs, and SR EPS around 2.1 lbs. That's a hefty difference.

I was wondering if there are many out there with EPS experience good and bad? Is it's performance worth the hit in weight? Is durability up to par?

Thanks!