Thx James, I'm going again in about a month so be sure to reply to that thread if there are particular shots/vids you'd like to see, etc.
In terms of what is currently available out there, and if by performance you mean raw output (lumens/throw), the TN30 is currently the brightest multi-emitter XM-L light in my arsenal and bests even a 5 x XM-L (APEX 5T6) in sheer output. While it may not be the throwiest (the S1 with its large tri-flector reigns in this regard), it's certainly no slouch. As can be seen in my beach shots, it illuminates a wide swath of the target at that 500ft distance at which point, my (aging) eyes would have a hard time making out the details of anything at that range (without the use of an optical aid).
You could always wait for the next greatest and brightest but then you'll always end up waiting since there will always be something brighter/throwier so at some point, you'd need to decide if the TN30 suits your needs. You certainly don't need my blessings to get any light you feel like but if it helps, I think it's a very solid choice in consideration of all the available options out there currently.
One thing that I've been heartened by is that ThruNite has recently improved their customer service tremendously. One need but look at their mfg subforum on CPFMP for evidence of that. While they may still be going through growing pains, they have been pretty engaged in replying to all the posts be it positive feedback or requests for assistance.
That should be taken into consideration as well in which case, it's another in favor for ThruNite. Hope that helps.
Cheers,
Tim