Welcome to the forum......
I would run them BOTH thru the Amps FX loop unless one of them is dedicated for drive pedals & chorus type effects.........
Or the 11-Rack thru the front input for distortion, chorus & flange.......& the Eclipse thru the FX loop of the Amp.......
Stick around & Moff will join in to set this all straight.....He's our resident gear set-up guru & male model!!!!!!
Peace! X-Mann