ShowTooltip has a new argument -- unit. If it is not provided, StarTip.unit is used, otherwise "mouseover" is used.

diff --git a/StarTip.lua b/StarTip.lua
index 86d53bc..85fc2ff 100644
--- a/StarTip.lua
+++ b/StarTip.lua
@@ -617,12 +617,12 @@ function StarTip:HideTooltip()
 	self.tooltipHidden = true
 end

-function StarTip:ShowTooltip()
+function StarTip:ShowTooltip(unit)
 	self.tooltipHidden = false
-
+	unit = unit or StarTip.unit or "mouseover"
 	GameTooltip:Hide()
 	GameTooltip_SetDefaultAnchor(GameTooltip, UIParent)
-	GameTooltip:SetUnit(StarTip.unit or "mouseover")
+	GameTooltip:SetUnit(unit)
 	GameTooltip:Show()
 end

@@ -780,17 +780,13 @@ function StarTip:GameTooltipShow(...)

 	if not show or StarTip.tooltipHidden then GameTooltip:Hide(); return end

-	--[[
 	for k, v in StarTip:IterateModules() do
 		if v.GameTooltipShow and v:IsEnabled() then
 			show = show and v:GameTooltipShow(...)
 		end
-	end]]
+	end

 	if show then
-		--GameTooltip:SetOwner(WorldFrame, "ANCHOR_CURSOR")
-		--GameTooltip:SetParent(UIParent)
-		--GameTooltip:SetUnit(StarTip.unit or "mouseover")
 		StarTip.hooks[GameTooltip].Show(...)
 	end
 end