so you have a male het pied and a female het pied and a spider female.

breeding visual to het is better than breeding het to het, but what would be better, a male pied or a female pied? i would get a female pied, and then breed the male pastel het pied to the pied and the het pied females. once you hit a male pastel pied, you can retire the male pastel het pied. if you have visual pieds, het pieds with extra genes are good way to add more genes into your pied projects, but as long as you do not have visual pieds, i would prioritize a visual. and a male pied would not be much of a boost, its still just one female het pied, still only one clutch, and you wont use the male pastel het pied at all, not even temporarily to get your pastel pieds.

now what to do with the female spider? the male pastel het pied doesnt seem to be a good match. the "het pied" is not really of value in this breeding unless you get a spider with strong het pied markers. and just male pastel to female spider is not that appealing.

so my shopping list sorted by priority would be:
- female pied, boosting the pied project, and driving up your odds to hit a male visual pied that also is pastel. once you hit your male pied, you can look for female het pieds with extra genes to keep advancing the project.
- some two-gene male that works well with spider. this depends a lot on personal preference, maybe a firefly or pewter. gives you different two-gene combos, and chances to hit a triple gene.
- one more single codominant/dominant female that works together with the two-gene male you got for your spider.

if you go from 3 to 6 BPs with these 3 additions, your pied project can really take off and in the codominant/dominant recombination game there will also be some really nice stuff going on. if all 6 breed, you get two clutches that are 25% or 50% pied with chances for pastel pied, and two clutches with dominant/codominant stuff which will contain nice two-gene combos and can contain triple gene combos. also there will be lots of potential to take it to the next level with holdbacks you produce, advancing to more male and female visual pieds, and double gene females, and maybe a triple gene male or female. if all goes well, you can later breed a visual pastel pied to a triple gene non pied to make your own het pieds that are loaded with extra genes.