As an English voter I had a clearer view of what Plaid stood for at the GE than I did of what Labour stood for.
Labour failed to engage me at all, even though their traditional values are probably as close as any party's to what I believe in.
I couldn't vote for Plaid and being in the southwest I voted Lib Dem on the basis that the sitting LD MP would keep the Tory out. We all know how that turned out.