I Luv tweaking but I don't go crazy, I tend 2 synthesize sounds with in a certain "Track enviorment" thus starting from pre-sets... If I do find a perfect preset I have no prob using (just like most people would use a drumloop or a sample really), though I am always temped 2 try and warp it a bit (normally arriving at something I like better).

other times I just play around synths for hours and record the results 2 user patches!

Z