i used to have an sph-4 which was a good solid helmet, no real complaints...they definitely have a good product. my new helmet is an Alpha 200 (i debated between this and the Eagle and decided on the 200) and i absolutely love it. its light, the visor mechanism is really quick to flip, i've worn it in +37 celsius so far and haven't found it unbearably hot. the one strange thing i've noticed about the alpha is that you REALLY have to work to get it on in sub-zero temperatures...the shell seems to shrink a full size. once you get your noggin in to warm it up its fine. i've used the oregon aero softseals and hushkits in both helmets and would definitely recommend them to anyone.