I've been working my way through the player owned ports minigame in Runescape. I just recruited my first "Crows Nest Sniper" who came with a perk titled Slow, which sets his speed stat to -80. This really isn't that bad, since -80 is rather small for the speed stat, however when a crew member levels, all of their stats increase by 10% of the base value.
When he levels, will this stat decrease further (in this case to -88), or will it remain the same or possibly even increase? I'd like to know before I invest in him just to have him slow my ship down further.