hi! im an electric bass player that want to enter the upright world. i saw a clasiffied today for a baby bass copy made by a local luthier (im in uruguay so thats the only choice i have) it had a piezo mic and a di marzio magnetic, each with a different out put. seemed comfortable and sounded pretty good. (the amp was a crap peavey so that disguised the sound a little) what should i take in consideration before buying it? thancks!