I’m using a school loaned soprano and it doesn’t have a front F. How would I finger altissimo notes without it?
My Yanagisawa S-800 is keyed to high f# but does not have front f.Never seen a soprano without a front F that would have a side high F# key , it would make no sense!
It actually works better than having an F fork key. I don’t use a neck strap so you still have a good grip on the sax.Just reach down with the second knuckle of your left hand ring finger and depress the F side key.
Sometimes the side high E key will stand in instead and be easier to finger. High E fingers easily as G# plus the side E on every sax I own. Getting high F, F# and G will require some experimentation. For me at least, from G# on up I don't use the front F any more.