As the title says. Who has tried them what is there opinion? I tried both today in known set-ups. the 200 in a P cat with a lehner that has no issues with a 40-160 Schulze (I know it pulls about 180 amps and runs well and cool) We also tried the 300 in a big boat on 8s today. Known setup that runs a flier 400 cool as can be...Does not pull over 250 amps. Both the 200 and 300 shut down on at 3-4 laps. Overheated fail safe kicked in. IMO they work but they're not what they are rated for. Not even close.