i agree... sorta. the thing is, if i dont have a local hobby shop stocking Tamiya parts, and i need something like a turnbuckle, ill use whatever i can get. the comments at the regionals i have overheard is "... as long as it isnt a performance enhancing part..." for what thats worth.
my Tamiya cars are all kept 100% TCS Nats legal, for what thats worth....