Sugarbush drafts are
Sugarbush x sugarbush
Sugarbush x stonewall sport horse
Stonewall sport horse x percheron or other approved draft stallion (must be individually approved).
That is only temporary as there are nly 12 purebred horses left we are trying to build the breed back up. By G5-8 (depending on wether we have reached our ideal type once again and have enough horses registered) the Studbook will again close and there will be no cross breeding.
Gypsy cobs are not an approvable breed as they are very different dimensionally to the Sugarbush and are much to small.
The Sugarbush Draft comes in all Lp patterns including solid. They do not need to be spotty, it isn't about the coat colour it is the horse underneath. The riding draft. I just happened to like dilutes and if I had a chance of an approvable dilute stallion as long as it made a good match to my girl I would take it.
No horses will be culled. That is a very strange thing to say. If they don't make the grade then the colts will be gelded and the fillies won't be registered but they won't be culled.