grade parent

I found out the other day that I am grade parent for both Devin and Alex this year.  At the open house last week I did sign up for both classes.  However, I told the coordinator very explicitly that they could put me where they needed me, but I only wanted one class.  Initially I was a little frustrated that I had both.  There are twenty-five kids in each class and two grade parents.  So out of the roughly fifty families that share a class with my two boys, they couldn't find three other parents to step up?  C'mon now.
But then I got to thinking, which class would I want to drop?  Alex really wants me to be his grade parent, but I really think that Devin needs me to be his grade parent.  What a lot of parents don't realize is that the grade parents really get to know the teachers well, and this is a good thing.  Plus they always are in the loop on field trips, parties and fun things.  Also, I think that when teachers know that the parents are concerned and engaged, they are more willing to give kids the benefit of the doubt and are more willing to work with the parents on issues.  My experience with Alex in preschool was such that I got to know his teachers well regardless of my volunteer efforts.  I assume that trend will continue, but I also want to help his teachers as much as I can. 
Devin is a different kid.  He can fly under the radar a bit.  He does well in school, he typically follows the rules and he's a decent kid.  If I don't engage with his teachers other ways (like volunteering), then I don't usually get to know them well.  Then working through concerns and questions is far less comfortable.  Plus, Devin volunteers virtually nothing about what he does at school.  Because of Isabel, I am pretty limited with the hours that I can spend volunteering at school... so grade parent it is.  Twice.