Alot of the SL94 Technology goes into the EGO10.. But i think you will find the technology in the EGO10 Board is newer than the SL94..
I Personally owned an SL94 and wasn't impressed, Haven't shot the EGO10 so won't comment on it, the 10 has a completely different sound to it but thats about as far as i'm willing to go until such time i shoot one.
If you want something completely unique bid on the SL91 that planet has on ebay.. Currently standing at over £2K
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Great thing is that it can be completely customised to your own likes..