is there any difference in this family/clan?

as my mothers name is a sept of them, it mostly comes up as Fraser of Lovat.

i'm going to have a tartan desgined for my own surname, i'd like to have a connection to the fraser side in it, i have a wee idea, but both of the fraser tartans have a different sett, so it's making my choice of add on to my tartan a bit harder.

cheers

Bj