[Qbot2640]

I believe the intention behind a permission to split numbers is to have them on adjacent sections. For example, if your design results in an octagonal base for some reason, you could split your numbers across a vertex of the octagon. It seems to me that, while possibly legal, splitting your number across a wide gap may not meet the "unambiguous" requirement...1234 could look like 12 from one angle, 34 from another, and 1234 from straight on. Our bumpers are going to be just a bit more than 8" - and there is still plenty of room for four digits. Just choose one side of the gap - we're going with numbers on the right.