Finally, my Jack Casady arrived two or three weeks ago. The first i thought when i saw it was "wow.. it's really beautiful". I've never seen a JC before, I ordered mine without testing or seeing it before. I love it, but unfortunately, i still cannot listen to its real sound because of my little practique amp (Trace Elliot Boxer 30W). Furthermore, the Peavey amp where we all the band play together has a horrible sound. Needs to be repaired. It will be done in a week or two. (GREAT!) I changed the strings for a set of GHS Bass boomers the same day the bass arrived. I don't know if they are good or bad, they were a gift from the guy of the shop. The gauges Jack itself recommend in his web www.casadybass.com are 45-65-80-105 but my new strings are 40-55-75-95. Should i try to buy a set with the correct gauges? When i play unplugged, the E string sounds "plain" with no sustain and a bit quieter than the other strings, that sound better without amp. The second question: I keep the factory set-up because i'm afraid of doing something wrong. I have no experience. Should I take my JC to a guitar shop to do a perfect set-up? Thanks in advance and excuse me if my english is basic.