I had my mind set to get a Minitaur before I got the SP, but I don't really know why I got it. Although I like it's sound, having a LP kinda made it redundant. This one (LP), have to my ears a better overall tone, wich I'm sure it's the opinion of a lot of LP users. The filters sound nicer, the envelopes are better and the overload is way better than the MULTIDRIVE thing.
It was said by other user that the oscillator section had a interruption in the waves that didn't exist in the LP. In fact, this is true, and it has something to do with the way the osc waveshape was originally made for the SP. On the LP the sweep is way better and uninterrupted, although the oscillators on the SP are clearer to my ears. This supposed interruption is kind of a step between saw and saw+square mix waves.
On the filter side, I have to say that mine had a limitation on the lowest range (and probably on the higher range too). When I closed the filter all the way down, I could still hear the very lower pitched notes, wich was a very bad thing for me... anyway, mailed Amos and he was very kind to help me to fix it myself (I live in Brazil and there's no authorized service here - the problem was a trimmer, I just had to turn it up a little bit). Now I have a normal filter range, wich was a little bit difficult to achieve (since the trimmer is very sensitive).
This 'problem' was one of the reasons that I began looking at it differently... after that first "new instrument gratification" I've tested every single part of it individually in a very critic way. The thing with it is that it seems to have a quality that just doesn't match the LP, and even less a Voyager (wich is way better than the LP in that department). I don't think that the SP is reliable enough for a longer period.
The side where I like it most is the envelopes and LFO, wich for me are a great improvement from previous Moog synthesizers. Being able to dial different LFO amounts to 3 destinations is simply great. The envelopes are fast, and although they're not as good as the ones on the LP, they have a larger range, and the reset option opens a whole new world of possibilities.
Feature-wise, I think the SP is a very capable instrument and I quite like the overall tone that I can get with it, but it's not a keeper. I see a lot of you who love it's sound, but I'm not one of them. Having both (wich now I know it's stupid, since they 'target the same sweet spot'), it's hard not to compare them, and although the extra sub-oscillator and a lot of other features make a difference in sound pallet, the SP is a replaceable instrument - mainly by other Moog synthesizers, such as the new Sub 37 - while the LP/Slim isn't (at least to me).
Feel free to judge and discuss...
