I was going to upgrade my SD to 32 gigs today and thought I might as well make 2-4 gigs of it a partitioned RAM to help performance. My question is should I wait to do this before or after I install a custom ROM. I am still waiting on a version of CM 12.1 to be tested further before running it but I wanted more RAM now. So should I be patient and just wait to add RAM until after? Does it make a difference?