I struggled with BS, and then stopped using it. Having read carefully through this thread I now realise I made two big mistakes, which proved both disastrous and costly
The organic schedule says to use biosilicon until week 5 of flowering, in my opinion it should not be used after week 3 of flowering as it effects the burn and taste quality of the finished buds, used to week 3 there is no effect on burn or taste, the later it is used after week 3 the more it starts to effect the burn quality. The chemical soil schedule says to use until week 8, this is just wrong IMHO if you want the best tasting and clean burning buds, if your only aim is yield then use it to the end.
Biosilicon is a totally brilliant product, when used with discretion it can greatly enhance the crop, helps strengthen the plant improve terpene, aroma and resin production.
Mistake A: I used way too much. For some reason I do not understand, I was using it at 5ml to the Litre! NO!!!!! I then toned it down to 2Ml or so to the Litre. Am I stupid or am I stupid? Anyhow..... that's what I did. Do NOT follow my example!
Mistake B: I used it right to the end. NO! Yes! But NO, Don't do this!
Result of Mistakes A & B: The most god-awful burn and taste imaginable. It was hard to light the spliff at all, but once lit the taste was really rather unpleasant. Not at all what one wants. Spliffs once lit were prone to go out straight away. The ash was darkest grey, almost black and very hard. It was nigh impossible at times to dislodge the ash pile from the spliff, it was so hard and brick-like. The hit was as ever, good - but oh my God, the taste was hideous and the smoking experience not nice. Not nice at all.
Conclusion: Don't follow me, Do follow oldtimer1!
Always a good idea, but especially so in this case. I intend to start using this gear properly as from now. I have a load of cuts and seedlings that are just perfect for another experiment.
Hang on, the dose ... it was ... what? Oh yeah, 10ml per Litre, that's it .... excellent!