Unhappy [Q] Unroot & Return to stock confusion...

Hi Folks,

Firstly, I genuinely apologise for having to post about unrooting but Im genuinely confused on the route I need to take.

I am currently rooted with S-ON running the Revolution custom rom (http://forum.xda-developers.com/show....php?t=2183023). Im wanting to take it back to 'normal' and unrooted as I don't feel I need it rooted as Im not noticing any gain from it.

I have TWRP Recovery installed too and I took a backup via TWRP before flashing the custom ROM - my carrier is 3/Hutchinson 3G

From looking about there are several ways to go with unrooting but I just really need clarification on the method which is most suitable for my situation.

Kind Regards
Sam