I'm that FZR racer.
My suggestion to SV owners about being taken out of LW SB ... Don't complain. The SV650 owners still have Battle of the Twins Lightweight as a primary class (in which it will be a competitive front-runner) and quite a few others as decent secondary classes. With the SV legal for LW SB, the FZR400 has NO classes in which it is competitive. With the SV out of that class, I have a class in which it is competitive and one other (Vintage) in which I can enter but (typically) be beaten by larger-displacement bikes. And, taking the SVs out of LW SB makes that class more attractive to owners of RC390, Ninja 300, R3, etc., all of which have pretty much NO chance against an SV650 assuming more-or-less equal riders.
It's better to give everyone one "good" class instead of some riders two "good" and other riders none ...
I won the LW SB championship last year but it was only because the SV owners for the most part didn't realize that their bikes were legal.
And I've ridden an SV650 on the track. And I've seen built SV650s giving 600cc 4 cylinder bikes fits. I really don't care what WERA calls a Lightweight Superbike.
LW SB is meant for FZR400, RZ350, EX500, RC390, R3, CBR500, etc.
See you out there.
(Also curious about which series got its season cancelled, first I've heard of it)