So get a Eco-W for the 230w or did you sell it off?
I'd be tempted to flat mount those 200w and parallel a set to a Eco-w. You would only push it if running a big load mid day in the summer.
One thing I have noticed is that the lower watt 24v panels are getting scarcer. I see more and more 250-300w panels for what you would have paid for a 230w a few years ago. Soon a 20a controller like the Eco-w will be obsolete as GT panels get too big for it. A 435w panel isn't that much larger than my 230w poly, that's a heck of a one panel system.
