I just re-did my solar panels after 10 years of using an older inverter/panels. I went with 64 Canadian Solar 400w panels + 9 of my older 240w panels(not shown in photos). The mounts are a hybrid between my older rails and new SnapNrack. Took myself+another guy about 3.5 working days(8/12 pitch roof) to get all the older panels removed and new ones installed. I have 400amp electric service (200amp x2) so I have each inverter using its own 200amp pass through. (note photo shows pre-wiring of inverters).