Is there any evidence that instant or traditional tapioca pearls - for bubble teabubble tea - are a better choice if I'm looking for a pearl that is very soft with just a little bit of chew? I've tried traditional pearls and always have okay results - but I've had better from some (not all) bubble tea stores. I haven't tried quick/instant pearls yet, but I'm tempted to. However, I still have a lot of traditional pearls that I don't want to go to waste if they're no better or worse than quick cooking ones.
Also, is there some way to keep the bubbles from getting harder when you add the cold drink to it (be it a smoothie, blended coffee, etc...)?