After a bit more experience with your two different kava offers:
It takes sometimes a while, especially when you are used to your other kavas.
First of all, which is a bit different to other kavas: It seems a bit darker and it isn't as finely ground as other kavas. This is true for both, perfect balance and deep calm.
You realize it a lot especially if you did your first wash and have the wet kava leftovers for the next washes. The leftovers are much darker (to me) than other kavas. And the texture is different.
First of all it seemed to be like some "standard" kava which isn't that strong and to be honest, not special in any way either regarding the effects (not only the strengths).
Meanwhile my opinion changed a bit. Deep Calm is a kava I really appreciate again and again. It can level you out into a "different kava spirit" again after you had some other kavas, and it is just without edge and "stress". Some kavas leave you with a hangover (mighty roots f.e.), or they stress you a bit, even heavy ones. This one has something "sobering" It isn't weak. I began to love the deep calm for what it is. And I wouldn't want to miss it, especially because I use it as some "leveling out" kava, when I need a break or "reset" from other vendors. Medium strengths and strange color and texture made me wonder, but I don't care. And a medium strengths is absolutely nothing to complain. The kavalactone contenct I have to question to be honest. I don't want to blame or say it isn't true. Everyone reacts different to different kavas and I am happy that you are offering your kava here in EU. But perhaps some "Labs" aren't that precise.... Or different batches and it changed.
Perfect balance on the other hand isn't my kind of thing. When I mix it with other kavas it is OK! But this is very personal, because I don't like kavas with "bubble gum" taste and smell effect wise. Perfect balance belongs to those (Seemingly Fiji waka tendency), but in comparison to other "bubble gum" kavas, I can tolerate perfect balance a bit better.
I really wonder about the texture and the color. It has an advantage, if you have gut problems, you don't get too much "dust" in your drink after straining.
For the price in EU, especially when you are lucky and get some % off... you can't go wrong.
Edit: I have to correct my statement about the color. This happens after it became wet and you did your first wash. Texture and color differs to other kavas I know. Fresh and dry the kava looks relatively normal.