Actually, @Woodinblack, ignore my nonsense re: split points using up a block. I think you’re right in that you’ll be able to use 6 Effects blocks regardless of splits! Check out this screenshot of the Andertons demo vid:
Clearly using 6 effect blocks in addition to the split/merge points.
Also, bear in mind that there is an “invisible” adjustable noise gate at the start of the chain and a global EQ at the end of the chain, neither of which take up a block.