Regarding Shues

[Aileron]

Suppose a Super Shue's made from two shues, both having Raise Attack by 1 attrib, will the SS have an initial Raise attack by 2 or by 1 attrib ? Does it hold same for elemental attack also ?

How's the xp for the shue calculated ? And does the shue receive any xp when u complete and submit quests ?

[Eos]

Nope the attributes won't add up. xp for shue is solely from hunting (solo or party). Some maps give faster xp than others for shues.
To see how much u get, check your shues xp before and after killing a creep.