Well seeing as I have been asking myself this question for a few weeks and finally deciding on the SL I can share with you my thought process. Having looked at and shot both I didnt think there was any difference in the way they shot..more the way they looked and felt in the hand. (although Im sure the purist may argu that the 10 shoots better. Ive owned four egos including the SL8r and I still cant tell the difference)The 10 looks gorgeous but the finish on the SL is out of this world! Combine that with all the bespoke parts and extra accessories that you get the SL really is a complete package.
As one of my buddiers keeps reminding me, the Ego is the stock production gun whilst the SL is the gun everyone wants to shoot!!!
Search your feelings...you know what i say is true. ....join me!