One factor for the Hill 'winning with a greater margin' than THS against MW is that SH has an 11 player squad and THS has a 15 player squad. Maybe the THS coaching staff is looking for chemistry...or making sure their JV players don't suffer some losses come conference time...(as they did last year)
THS, up to this point, have played Mitchell along with any 4 of the remaining 14 and have come away in victory. Against MW, Betsy and Greenville, Mitchell was able to drive at will...(Playing 11 girls almost back-fired against MW). Taking the top 11 from each team, I would still favor the the Hill...
One would have to give them the edge because it takes less time to build chemistry with fewer numbers. Cut the rotation down to 7/8 players, it will be a closer game between SH/THS. I guess the argument could be made that high-pressure defence requires more players in the rotation...although, as you are aware, Big Blue, Unicoi does a pretty good job with about a 7/8 player rotation on both ends of the floor. THS should be very competitive with the Hill once they gain more chemistry with fewer numbers. It will be a dog fight!