I have recently tried to make an impact on myself with fretless, it's lined. I have a massive love hate relationship with this thing. My normal lying around for noodling fretted bass has gone back in his case for the last 2 months and just now feels bizarre and club like when I pick it up. Whenever I play the fretless it either sounds like tuneless mud or sometimes I get flashes of brilliance and go to bed buzzing. One thing I have noticed is I am a very busy player on my fretted bass but the fretless has really slowed me down. I try to play like karn rather than Jaco. Did anybody else find this? Also any tips on making the transition? I did not realise what a totally different instrument it is. Sometimes I turn the drum machine off and just listen to the beauty of the wood against the strings. I have no problem getting the Mwah though as I use a lot of vibrato on guitar anyway.