olci and extra leg economy config 1,2

Hi Guys
I'm beginning to get twitchy as my date approaches. I have extra legroom seats on a MCO flight with three passengers. looking at the 747 config 1 and 2 layout I kind of worked out in my mind where I thought the seats would be which was great until I read Tinkerbelle's post.
For config 1 I had my eye on 21abc but Tinkerbelle suggest 22abc which throws my theory out the window. Are the start of rows not considered extra room seats as that would seem the most obvious?
Also the two refurb 747 in use have the controversial shared bubble classes. The start of economy again seemed like an obvious choice to me as a extra seat?
Does olci guide you to appropriate seats or would it be better to call customer services 24hrs out do you think?
Thanks
I'm beginning to get twitchy as my date approaches. I have extra legroom seats on a MCO flight with three passengers. looking at the 747 config 1 and 2 layout I kind of worked out in my mind where I thought the seats would be which was great until I read Tinkerbelle's post.
For config 1 I had my eye on 21abc but Tinkerbelle suggest 22abc which throws my theory out the window. Are the start of rows not considered extra room seats as that would seem the most obvious?
Also the two refurb 747 in use have the controversial shared bubble classes. The start of economy again seemed like an obvious choice to me as a extra seat?
Does olci guide you to appropriate seats or would it be better to call customer services 24hrs out do you think?
Thanks