Prompt [Q] e10i custom Kernel change?

Hi community, this is the first time I post something and maybe this is the wrong category

I have an e10i, I love it, and following the instructions of this forum I managed to flash custom roms and I'm extremely happy with CM7 2.2.2
But yesterday I read that this ROM supports nAa .32 kernel and I'm wondering if it's worth it to flash this kernel (since I read it is intended for newest androids) will this kernel improve the mobile performance with CM7?

And in affirmative case, how do I flash it over nAa .29? Directly over the old kernel? Should I wipe everything before? Is there any way to don't loose all my mobile data and settings?

In cas someone needs it: http://imgur.com/dOKFR6j
My kernel at the moment: http://forum.xda-developers.com/show....php?t=1256739
The newer one: http://forum.xda-developers.com/show....php?t=2136471
The ROM post: http://forum.xda-developers.com/show....php?t=1068553


Thanks in advance