I personally didn't think the springer/sandstorm mould was very small, one of the larger voyagers we've had in a while. I suppose your saying that the armada era toys were a LOT bigger than even those two though.

having been a picky bugger, remoulds like that are pretty sweet. I generally skip out on straight repaints even if there is a different head unless there is precedent. I have a lot of seekers, and various versions of the Datsun bros for example.

My preference is for a new mould all the way but some of these existing remoulds are surprisingly good and enough that you could just about call it a different mould, chromia/prime Arcee being a good example.

As log as it doesn't lead to an entire wave of 8 characters being pretty much the same toy with 20% mould difference between each one. that would get really boring really fast.