I’ve played electric bass since about the mid-70’s and started learning how to play upright 3 yrs ago. I agree with the others that the Ibanez EUB at a 34” scale length is really not an appropriate substitute for practicing towards playing on a full scale upright scale, and you certainly can’t play arco on it due to lack of curvature. I had a Stagg EUB, it was just OK for use as my practice beach bass I’d take to my cottage, but it allowed me to practice without schlepping a 3/4 upright. About a year ago I found a used Yamaha SLB 200 EUB cheap on eBay that had some issues. It has a chambered body, a 41” string length, good curvature to play arco, it sounds pretty good with the Zyex strings I put on it amplified and it is loud enough, especially playing arco, to practice without amplification. But new, I think the Yamaha is very pricey, and my 200 did not come with the body frame which is a major reason I got it so cheap. If you have the room at home for practicing and won’t need to move it, why not buy a laminate upright for use at home. You can get an Engelhardt or other laminated upright cheaper then a good EUB that properly emulates an upright, at least for scale length. Otherwise keep your eyes open for a good used EUB that is close to the scale length of the upright you perform with at school.