1.) Only Staffers have the Totally Defiant and they cant throw them in competition (I believe, not sure how that works). So not many could actually give you a comparison.
2.) The Soul is a really good asym solid ball. A lot of Staffers (Amateur and Pro) threw that ball successfully.
3.) None of the Defiants are the same Coverwise. The first 2 offer the Micro-Bite Particle additive, whereas the last 2 offerings do not.
4.) If you feel you need both, Get Both. The Pearl additive in the Totally Defiant will offer a different look than the Soul. Dont go by the numbers, I believe they are all the same since the all share the same core.
