They’ll make seeds just some of them don’t reverse for s1 very well. The other side to the whole conversation (and if you’ve never been on the sour diesel thread it’s a warzone over there 
) is that finding sour diesel in any of the seeds produce by breeding sour diesel is nigh impossible.
To be frank though my terrible outdoor grow left me with motorbreath 15, sour diesel, and LSGTK that smell of hay, and the most gas/fuel smelling super silver haze. Like if I didn’t label the bags I’d have thought it was the SD.