Hello Nick, Yes somewhat confusing now almost like Goldilocks and the 3 Bears.... Which Bed, Which Porridge?
Well if money where no object the Super Scoutmaster is the way to go. If your on a budget you could go for a Scout, & add a few upgrades. The Scout, & Scoutmasters Wow & Flutter measurements are the same. The only difference is that since both are non-suspended designs the Scoutmaster adds 15 lbs. of additional mass dampening with it's double plinth design.
I would get a Scout, SDS, and upgrade the following... Ad the new stainless steel record weight, the new seamless anti static black belt, & purchase the 300 rpm motor upgrade kit to replace the Scouts stock 600 rpm motor. With the addition of some sort of isolation platform, or device it would then be a tough difference between the Scoutmaster, & the Scout.
I would spend the difference on a better phone stage, or cartridge instead. Yet the Hrx motor alone on the Super Scoutmaster is worth jumping for if you can stretch the budget?