I haven't noticed any better or worse from Spider in combos vs just Spider either but I have a limited pool of data. None of mine have ever had even a moderate case, it's always been extremely subtle. The worst case I've had (and it's still only noticeable during pre-strike and if you intentionally turn her upside down with eating) is my Enchi Pastel and she doesn't even have any of the morphs known for wobbleI really think husbandry plays a big role because stress does make it worse.
If you like the lighter animals, Banana combos would be great, but sp0420 is right, female Bananas are not cheap. You could always hold back a lovely Bamboo combo female from this boy x Super Pastel or something like that and get a nice powerhouse Banana male to go with her down the road though!