I am starting my seasonal repairs on my Bim2000. My West system 205 + 105 junior pack has never been opened and always stored at room temperature; however, the expiration date was Aug09. Two questions:

1. I plan to repair at 10degC (50F). This is above the stated minimum of 40F. Any tips?
2. It is hard for me to get West System. I can either get fresh generic vinylester or use my expired west system. I have never used an epoxy other that West System successfully, so I am a bit superstitious to keep with West. Anyone have experience with expired, but well stored, West System?