No problem, happy to do it.
It is very uncommon to finish the program in one year (unless you are a dental student). Dental students are commonly accepted to Tufts Dental during the first year of the MBS program and >90% are accepted from what I understand. I would say 95% of the pre-med students will choose the two year option and for good reason. Most of us apply during the second year of the program to have special consideration at Tufts.
I personally came in with the intention of completing the program in one year and not paying the continuation fee for the second year. I was convinced before getting to Tufts that the continuation fee was just a scam designed to take money from students. After finishing my first year I realized how crazy the one year timeline would be. It was even more hectic for people who were not happy with their MCAT score and wanted to re-take it in May/June before applying. Also, the continuation fee allowed me to remain enrolled as a full-time student and gave me access to financial aid and on-campus housing that I wouldn't have had otherwise. That being said, I know 2 of my 110 classmates applying to med school that applied to med school during the program and did the 1 year timeline. It was rushed and crazy, but they did it because they were starting med school in August.
When I arrived in Boston, it became very clear to me that I should focus on my classes during the first year of MBS to do well in the program (especially because my main weakness as a re-applicant was my GPA). I had already taken my MCAT before starting MBS and so I decided to apply during my second year while completing my thesis. Some of my friends are even taking the second year to do their thesis and re-take the MCAT, with the intention of applying the following cycle.
Remember, if you apply during the first year, you would need to finish all secondaries before classes begin and then prepare for interviews/travel while enrolled in classes. Not to mention that you would not have any of your MBS grades submitted until early January and most schools already have their first round of acceptances sent out before they have even looked at your 1st semester grades. Additionally, you will NOT get special consideration at Tufts if you apply during the first year of MBS.
This makes total sense because they want to see your full year performance before considering how you will stack up against their own medical students if granted admission. I know several people who have applied during the first year in the past who wished they would have waited to apply until after the first year of the program. You will receive special consideration at Tufts for all application cycles after your first year.
Hope this helps!