I'd go multi gene as well, but also something to consider.. At the moment it seem you have 4 males for 6 females, I think your plans would be more efficient if you evened it out to at least 1 male per 3 females (that is if you want to maximize breeding potential)

I love genetic stripes and all recessive genes for that matter. The fact that they take longer to produce is appealing to me. I would go for some more mixes of het for genetic stripes for now, its a longer-term project but the end results will be awesome!

Good luck