Much like Pilgrim I have a hard time breaking fellowship over the issue of eschatology. Although I believe it is an important issue, I also know just how hard it was for me to decide which view I thought was biblical.
I came to an A-Mill understanding after years of understanding and even now it is not an issue I would die for.
For the majority of my Christian walk I was a Dispensationalist, mainly because it was the only position I knew.
I would also state that if I broke fellowship over this issue, I doubt I would find a Church.