I run the triangle sac that sits on top of my seats. Says it is 1k but I'm not sure? I'm thinking about putting the 750's in the back. I run stock plus 540 in lead dispersed under the rear sacs and a 750 in front of the rear seat about 3/4 full.
My thinking is if I run the 750's in the lockers I can do away with the lead and sac in front of the rear seat.
I have to be careful about swamping it but where I ride it is usually not too big of a problem.