Information regarding Combined C/Ku LNBF

[textilian6014]

Dear Experts
Your suggestions are required regarding Combined C+Ku LNBF. I have few questions
1. Will it give better results on 8" Dish as C band will also be in center.

I have searched FOLLOWING pages and some information is attached

[textilian6014]

It has following specs which i think are very good.

[textilian6014]

But price is very high. So should it be worth of money???