I definitely agree with that advice.
Different PTK organizations have a different focus and, at times, a different training methodology. Leslie Buck also teaches Pencak Silat Mande Muda, which allows the opportunity to cross-train if something like that is important to the OP. You can see the silat influence in some of Leslie Buck's videos such as this one:
Joseph, belonging to Tim Waid's organization, in addition to the close range material that PTK is known for, is going to teach the Tirsia Largo (long range) material that GT Gaje didn't really teach when he first came over to the US. Here is a good example of what the Tirsia Largo material encompass.
Erwin Ballarta, who is Leslie Buck's main instructor, also resides in Austin, but I am not sure that he has a regular class. I think he might do more in the way of privates, and work with organizations, but I could easily be wrong on that.
Like always, it really comes down to what the OP is after. If I was there I might honestly inquire about training with both Buck and Smart (providing that both instructors were OK with that), but that is just me.
