EdWort,
I'm digging all the BBQ you're showing off, and I've longed for one of those Eggs for some time.
I have to raise an issue with this one though. As a former resident of Lompoc, CA and neighbor to Santa Maria, Home of the ORIGINAL TRI TIP BBQ, it is unnatural to cut it up before grilling it, and to get the right authentic experience it should be cooked on CA red oak, not charcoal.
I'm not saying you're not going to enjoy it the way you're doing it, just that it's not done that way where it's from. Kind of like my brisket in a slow cooker, vs. the proper TX way...
Bon Appétit,
Matt