YES, Many years ago when I lived in Michigan I met Dave West a couple of times. I've never tried the Fillmore, but I did try the West Grande. Nice amp. I had to make a choice between a West or a Sunn Sentura II...I chose the Sunn cuz it had reverb. I also met Mark Farner when he was with Terry Knight & the Pack...(Pre GFRR days). Mark worked for Dave a little bit helping him build speaker cabs before he ( Mark ) really hit it big.
West Labs is still in business...in a small way. Check out the web site.
Rob