Hey @TURNER so no expert but I have looked into those MCF batteries before. I remember they were all the rage on some Marine sites in the past few years. I really think it was a compromise before lithium really took hold of the market. I am confident that they offer no real benefit at the price point they are sold today.
Looking at the 12V E31 still only 50% DOD like other lead acid technologies. Yes more cycles but same DOD for long life, spec says 3600-4200 cycles. This is rated at 108ah so you only really have 54ah usable. Or you can go 100% DOD and you have 600-800 cycles. According to the data sheet if you pull 30a DC from the battery you will only have 91.5ah so with a large load you only really have 45ah usable. The price point for a 45ah battery is ~$450, I don’t see the economics for this type of battery at all.
Stick with cheeper traditional AGM’s or get a Lithium battery which will for ~$950 give you 100ah of usable capacity at any discharge rate.