I think hets are for breeding to other hets of the same gene. That's why they cost so much.
I wouldn't get 100% hets of something unless I planned to breed that gene out.

I would just get a nice normal to breed to a spider to get 50% spiders and 50% normals.
Or, get a pastel, mojave, lesser, butter, yb, or any co-dom and add bees to the equation!