Regarding the interspecific hybrids :
I’ll add up that there is very significant early growth differences from one of last year cross (i.e. fruit) to another: see there with the 2024 3/4 moschatas Tetsukabutos.
The 2 first were relatively big squashes with 25 seeds each, the 2 later smaller with 7 seeds for the 3rd and 33 for the 4th, i.e. the smaller squash. All kept perfectly until they were opened in mid April. And were delicious!
Here they are now, with my thumb marking their rank, each one is 2 meters / 7 feet apart from the next in a rather homogeneous soil :
The other obvious thing is that the 3/4 maximas look big right now in their moschata patch and that the 3/4 moschata look small in their maxima patch.
Then we’ll see later for their other qualities…