That’s “middle range”? How do you define middle range? Will get you to conference qualifiers? Get you to conference? Get you to the state meet? (talking in the biggest division, not smaller ones). 48′, if you got through to the conference meet, would get you near dead last, saving for people that fouled all their throws or something like that.
2 years to go from 30ft standing first attempt (no coaching) to 40ft with a glide of some kind? Have you ever seen a pretty good throwing coach work?