Latest post of the previous page:
I am buying Eti from Predator for a few years now. I have never been disappointed. The powder delivered last week is excelent quality.Once predi fucked up and sent me 0,1g instead of 1g and when providing him proof he immediately sent the whole gram on his costs.
My advice how I dissolve the powder. I put 200mg powder in 100ml PG (propylene glycol - I always have it home for e-cigs). I put it on the radiator (heater) in a 200ml bottle and shake it like crazy every hour. It dissolves perfectly in a few hours. I get nice ratio of 1ml = 2mg which is perfect for my needs.
If you don't feel it, it is definitely a problem with your tolerance, not from quality from Predi.