But, I feel like the best use of TF SBM heads is an application that can use them as they come right ootb.
The cost effectiveness goes down quickly if you’re paying someone to rework them
That's basically what I'm saying. From a practicality standpoint, it's easier to achieve your goals by starting with parts that have had their inherent flaws solved already.
It's probably safe to say that most TF users are not hardcore racers. I'm sure there will be a few who get a set of those in the 9s or whatever but for 95% of TF build ups the OOTB flow/performance potential is probably sufficient.