whether I should pursue upright bass or find a school that allows me to audition on electric bass.
So, if it's either guitar or double bass and you'd really prefer electric bass in college, it sounds like it's worth exploring what your motivations are for taking your music focus to college in the first place. What are your goals in college, and perhaps more importantly, after college? I'd suggest that if you're targeting music because you have some experience in it, and perhaps would have an advantage in college because of that, you might be looking at music, and potentially even looking at college, for the wrong reason.
My first college experience was wasted, I had no direction and I really didn't want to study, and I'll always feel guilty about the wasted money and wasted energy involved with getting me into college. At that time in my life, I really just wanted to play music. I quit in my Junior year with a mediocre college record, and then worked a dismal assortment of hard -- not music related -- jobs for about 10 years. By that time I finally had real career direction, although not in music, and went back to school. I aced that college career. I still loved and still love music, but I over that time I had learned that for me, music just wasn't going to provide stable lifelong income; I could still enjoy it, but just not as a career.
If you can do it, the best reason to focus on a particular skill set in college is because you want to make a career of that skill set. So then you have to ask yourself if you really want to compete professionally in the market with that skill set, full time, year after year and decade after decade, in order to earn a living to support yourself and potentially a family.
For a lot of people, the thought of that would take all the fun out of music, but if it doesn't for you, maybe you're on the right track...
If you do go into music at college, be prepared to also learn to perform with piano, voice, other instruments, potentially also putting a lot of time into orchestral performance, theatrical performance, etc., etc. In other words, the specific direction that currently you personally want to take your music may not be the same direction that your professors will steer you. It will definitely be mind-expanding, but it may also be tedious and uninteresting for you at times, and your specific music focus will probably change while you're in college...
If your love for music can grow and flourish in these situations, then you're probably going in the right direction. My suggestion is just that it's worth while to think it over very realistically, and very carefully.
Best of luck to you as you make your future!