I see.
On my first lesson I shot a Browning SA and O/U. The instructor wanted to show me the differences and find my preference. This was a 2 hour stint an instructor/acquaintance so probably a little more relaxed.
It ended up with me buying both. A Miroku MK60 which I still have an love shooting and also my first SA which was very old and now sold on. My natural inclination is a SA, they just feel nicer to shoot for me.
Enjoy your lessons.