Whilst in the past there have been academic scholarships offered after a Saturday T interview, I do believe this is the exception rather than the rule. But I guess a boy can always completely wow whoever is interviewing them!
Equally, a midweek interview is no guarantee of any kind of scholarship offer - a friend's DS was not even offered a place following his midweek interview a couple of years ago. Make of that what you will!
However, last year DS2 had a midweek interview with the director of admissions, whilst we saw the headmaster. We were told exactly how well he'd done (very well!) and he was awarded a scholarship.
I think that if you have a midweek interview and that an academic scholarship is on the cards, then that will be probably be made pretty obvious during the interview.
But at the end of the day everything is just speculation at this point. You never know until the letters arrive.
DS2 started in the junior year in September this year.
He loves the school, and is really happy there. They take really good care of all the j-bugs, and I can honestly say it was the best decision we made to remove both DSs from their primary at the end of Y5 and start them at T in the junior year. We have a 25-30mjn car journey, and it doesn't seem too much for DS2, but each child is different.