We have an error in our SSRS environment that looks to be addressed in SQL Server 2008 R2 SP3. Our set up is a scale out environment, 2 SSRS app servers and 1 SSRS database server. For simplicity as we are moving to 2012 soon, I would like to only install the service pack on one of the SSRS app servers. Anyone aware of any reason besides keeping servers consistent to not do this? I don't want to go through the time to upgrade the SSRS SQL Server if I don't have to.
Thanks