Im fairly certain that the spider wobble is pretty randomn so I wouldnt let just that turn you off of the morph. Most wobbles arent really that bad anyways. Work with what you like and think is cool! I dont think that another morph added with spider lessens the chance of the wobble forming either, but i my be wrong? Like a killerbee has the same chance of a wobble as a plain spider but im not positive.
With that said lesserbees are really cool so id go for that if its what you like!