Portsmouth is the best system we have. Much better than PHRF or the other systems.
Is it real acurate or "fair"? No. But it is better than nothing. We enjoy sailing and comparing boats, it enables us to do that. However it is just that. That are way too many variables in sailing to boil down to formula rating.
The biggest problem with any system is that darn wind. It keeps changing on you! Or has anyone noticed. The systems assume a consistant wind (which never happens). So the system will never work. However, it is better than sitting around compaining and doing nothing.
Sure, I hate portsmounth too. But I like racing more. So I will keep racing portsmouth.