No pics, but I've seen them slash cut, and they weren't much better. In fact, I'd say slash cuts made them worse.
If you can weld, I'd cut them off square and either cut them way short and weld a trumpet on the end for shorty chopper pipes, OR cut them back, and weld some reverse megaphones on the end, with some baffles from cone, and have a set of racy sounding 2-1.
Those turnouts are love or hate- I can't stand 'em either.