...Ya know what, I'm just gonna take the L plain and simple on this one. I'm quite familiar with KSBs and I know they stay small. I know rosy and rubber boas aren't that big either. My best excuse is that SIGBs look superficially similar to a typical BCI/BCC at a glance and my brain forgot where the Solomon Islands were so I thought it was some offshoot subspecies/locality or something.
11+? Most I've heard is 7-8, maybe 9 at the absolute most. A VBB is my dream snake so I've been researching them a lot.