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BN converted me.I switched to the big boards a few years back and like them alot. Took a little time to smooth everything out but in spring they are a blessing. I can fish light walleye rods or UL's and have fun fighting the spring coho. In later parts of the season I rig with rubber bands when pulling lead or copper.
I still have my in line boards on the boat but haven't used them since I converted.

Brother Nature. Question for you. How do you run the big boards later in the year? Spring is easy as everything is pretty much running at the same depth. How do you manage running copper or lead? Do you reel everything in whenever a rod goes off? If not, don’t the lines tangle when you get a fish? Thanks for any advice. Love running big boards.

Start with the premise the natural proclivity for most fish is to fight "up" when hooked and add to that the "physics" of hooking a fish while trolling forces it up to the top. Now add to that the idea you want to fight a fish over the top of deeper lines. Once you grasp this, the concept of deepest lines, closest to the boat makes sense. The most I run at one time is 5 long lines - both leadcore and/or copper. Two will go on one big board, two on the other, the 5th line (if I'm running one, goes right down the shoot. (Most of the time I don't run the 5th line.)
I've run both a leadcore and copper off the same board, but if I'm running two LC and two coppers I put the coppers on one side and the LCs on the other.
Unlike in the spring when you can just rotate the rods, If you catch one on the outside line, you need to put it back to the same position. So reel the inside line up and remove it from the tether line. Move it out of the way, let out the line that caught the fish, slide it out to the outside and then reattach the inside line and put it back into position. It's a bit of a hassle, but it beats having to reel in a walleye board, keeping it from diving, removing it and then starting to fight the fish after it's about 3/4 whipped. My hassle happens when there is no fish on the line;

BNature I was thinking about the boards just being bigger out there but I guess it really doesn't make a difference. Mine do not calapse down nicely like yours but they sit in the front of the boat on the ride home. I store them in the big cooler when at home. I run them pretty much like you have with lead on one side and copper on the other . I have not used them yet in spring or on walleye so I am curious to see how easy it is to notice smaller fish on with it since there are no flags and not sure a small fish will pop the rubber band (might have to find smaller rubberbands or something else that will break easier). I am looking forward to actually fighting the smaller fish rather than the in-line boards this spring and for the walleye, that is for sure.

Ed: The rubber bands work fine as releases with leadcore or copper and larger fish. I'm actually experimenting with an Amish Outfitter rubber band release now but have only used it a couple trips, jury is still out. In the meantime, in the spring, switch to pinch-pad releases, no rubber bands involved. The best I've ever used are Offshore OR 10, but they are relatively expensive. Almost as good are homemade releases and they cost less than a buck each. I remember posting on how to make these sometime ago. I don't know how, but I know you can search for past posts. The photo is self-explanatory. I get the 5-paks clips and the rubber hose at Autozone. In the spring, I only pinch the line about 1/3rd the way back in the rubber.