I'm assuming you meant he part that goes in the neck, if so, I hardly ever use that. I use the hook connected to the back plate more and I think it's sufficient.
Scream Man, although the Low Viz has one of the finest paint job of the 1:48s (peobably because it's all one color) the weathering paint they use doesn't stick as well. I took mine off with alcohol becuase I don't think it was great weathering anyway and IMO, the valk looks a lot better without it. Panel lines are sweet too!