I personally find it insulting to just cross cross cross these breeds without careful selection. It's insulting to me as a horse person and I feel, insulting to the breeders who breed horses to improve the lines and produce fantastic family or show animals.
A Friesian stands anywhere from 15-16hh with a light, but thick build. A Gypsy ranges from 13-14, sometimes 15 but generally there small, but also built more like a draft. Why would you try to cross something like that?! It's most certainly not going to be a spotted Friesian coming out.
Think about what Sky said about the Friesian x App. Just because you want color, doesn't mean you should do it.
The people breeding the Friesian x Gypsy also do a lot of QH and Paint Friesian crosses. From what I could see they had generally poor conformation. One had a huge butt and tiny little chest. It was, well, icky.
There Friesian sire, in my opinion, has a rather long back and small rump and chest. Not every colt is meant to go forth and multiply.
Everyone has the right to profit from there horses. But if you breed JUST BECAUSE it might be pretty and sell for 5-8k then maybe you shouldn't be doing it at all.
Breed to better the breed. Then profit.
Wait! I'll fix it....