Better luck than me. Ironically, Propore is NOT as breathable as eVENT as some have said.

Tissue paper will block some wind, but Frogg Toggs are not as wind proof as eVENT or say Pertex, which many wind shirts are made out of.

The fact is...buy what you want. Where what you want. The OP asked about the disadvantages of eVENT. There aren't any...unless price is an issue.

(don't say weight either. Westcomb has an 8oz 3 ply eVENT jacket available in 2010)