Thanks guardian member for your advices

I'm currently working on the crooked hand but I didn't know that it will improve vibrato.
My lefty (you noticed it

) Warwick corvette is so nice and so beautifuuuul ^^o. It's a real pleasure to play it. The fretboard is high quality, pleasant with no buzzes at all. What I love with this fretless bass is that you are not limited to the mwah sound. It can deliver 3 type of sounds depending on the pickup selection: neck for a round sound, bridge for a jaco sound and mix for a more rock-ish sound.