Interesting. It looks like I may have to try some testing of my own. Shame none of them come in little bottles e.g. 50ml-100ml, not convinced I could risk it from an ebay seller - I might end up with just water and a bit of food colouring!
Also it's time to get organised on the seed front. One spreadsheet on its way!
I used to use all biobizz stuff then I added carboload,big bud and overdrive and noticed a BIG difference!
even if you did get what you paid for,you cant be sure the eejits gave the big bottle a good shake nefore decanting.