I'm looking at a boka build for neutrals, 2" perhaps 3" depending on availability. Been reading up on vm/lm combo bokas, where you run the lm for heads compression and change to vm for hearts. Personally don't care about tails unless you can really rip it out nice and quick, even then meh, tpw is cheap.
It seems to me there is some complexity to a vm/lm combo, what with plenty of offset condenser variants and reflux return lines etc etc. Is a vm/lm combo worth it over lm boka? I'll still get azeo with 1.2-1.4m packing with lm and a vm outlet will reduce packing height if you need to stay under a 2.4m roof from what I can see?? Then we have reducer bokas, which is supposedly to centre the return reflux, taking up more height to be used for packing.