Regarding 'trying before you buy'.... nice in theory and I agree, although very few of us have a chance to try any of these relatively low distribution high end basses prior to purchasing. And even then, it's no guarantee. I spent a couple hours with the Jerzy Drozd basses prior to purchasing one, and after a few gigs, I decided I never disliked a bass more! It's always a crapshoot IMO. That Sadowsky 7 day return is cool, but many times, 7 days isn't enough to really get a feel if something is going to work or not. IMO!
+1, I can usually tell within a few minutes is something is really not going to work.
+1 on both Ken (or is that more appropriately +2?).
It's way easier to tell when a bass is definitely not my thing. However, truly good instruments tend to make you evolve into them, and it's a matter of time and gigs before you can decide whether the evolutionary process will work out.
I literally stumbled into my AC bass - and its all because I bought a Fodera from Mitch (basses55). Bought the Fodera NYC from him and loved it so much that I bought a second 4 string Emperor from Virginia. Played them both hours a day all this past summer, and at the end of that time decided that though they were beautiful playing and sounding basses, neither was quite right for me. That process took weeks, with literally dozens of gigs and rehearsals.
Fast forward to November of 2007 - still looking for "the" bass, and because I'm on holidays and a little bored, I call Jimmy, because I remember Mitch mentioning AC in the summer, have been reading this thread for a bit, and have checked out the Paul Turner clips on You Tube, and become a bit of a Jamiroquai buff.
Jimmy and I get talking about what kind of playing I mostly do, and he says something like "well I think an LG-5 would suit you, but I do have this new bass I just built..." and he goes on to describe the RA-5. It sounds like a great solution for me. Jimmy asks me how I found out about him, and I say, well this guy in Toronto told me about him. He says "you mean Mitch - that's really funny, he playing his new LG-5 not 10 feet away". So I talk with Mitch, and he talks with Jimmy, and I talk with Jimmy, and 12 hours later the RA-5 is on it's way to Toronto with the understanding that if I don't like it, I will send it back and Jimmy will build me an LG-5.
The RA-5 arrives. It's pretty awesome, but has a bit of a "zingy" sound. I practice with it for a week - it sounds and feels more wicked every time. I play a big band gig with it - it sounds wicked. I play a rock/blues gig with it - it sounds wicked. I play some rehearsals and a musical with it - it sounds wicked. Mitch comes over, takes a screwdriver to it and plays it for a couple of hours and it sounds and feels more wicked. In fact, Mitch played this bass at BPL (so did many others I'm guessing) but he didn't take to it there. Ask him how he feels about it now
The point of this lengthy post is that trying before you buy helps, but it really takes a little longer than that before you can tell whether or not a bass is going to work well for you over the long haul. I've owned (as we all have) a number of basses over the past 35 years, and only two of them stayed with me for long periods - a 1981 Spector NS2, and 1992 Sadowsky NYC. The Spector is long gone, and the Sadowsky went this fall with the previously mentioned Foderas, fine basses that only lasted with me for a few months.
For me this Alleva Coppolo is the real deal, but I would never have have known that had I not taken a bit of a gamble.