Over the last decade HKC and other kava sites consistently had tudei in stock while other kavas were out of stock, sometimes for years at a time. This is not because tudei is the best seller, it's because it's a poor seller, therefor it's always in stock while good shit isn't. Jonathan Yee is looking to get back in the kava biz and recently acquired several kava cuttings, guess how many tudei cuttings he chose? Zero.
Tudei's bad rep doesn't have to do with it's flavor. I've had tudei's that tasted worse than some nobles and vice versa.
Basing your judgment on your singular short term experiences are close to meaningless. You could take many poisons at the right dose and not feel the damage it's doing, in vivo. Mass long term experience is where the best evidence resides. The collective efforts of the 1000's of years of pacific island kava drinkers have done this already. Modern science has also proven tudei kava is more toxic than noble. It's not in question.
This does not mean that you drink tudei and die...that's not how the body works. You'll just be putting an unnecessary strain on your vital organs, which often don't reveal the symptoms of their destruction until they've been damaged beyond repair.
Not to mention, i've drunk many noble kavas that are equally as potent as tudei. I've also had tudei kavas that felt weak and disappointingly mild. But simply because it didn't feel like it was harming me doesn't mean it wasn't.
At least you acknowledge it shouldn't be consumed daily and I'm sure using it sporadically is relatively safe if you are in good health and not mixing with other substances. But really it's no different in experience than drinking a heavy noble 'medicinal' kava...same experience, more toxic. Unwise choice.