yep, i've bent 2 of them at that same spot
i'm rougher on these little quads than anyone i've ridden with.
i've have had 3 frames down to bare metal during rebuilds, and yet to find a crack anywhere.
so i didn't gusset anywhere but at that bottom a-arm spot.
was that a mistake ?
i can pick up 88-02 frames for under $100, if the frame doesn't bend now, but my $400+ ASR a-arms do, which is cheaper to replace ?
i'm sure i'll find out someday