Yeah that 'corkscrew action' is very familiar to me. Every time I'm out enjoying the backroads and stop for fuel, if I clean the faceshield this will never fail to happen: within three miles back on the road I'll see that black dot out ahead, slowly spiraling in. It always hits right on that between-the-eyes spot where I can't look around it or pretend it's not there. Always a big red or yellow or some-unnamed-colour splotch. Dunno how those bugs got so good at always hitting me right there, but they do.
Thank goodness I've always worn full-face designs.