I know for a fact that Emerald Triangle is still making all four of there products, Purple Maxx, Snow Storm Ultra, Gravity and Bushmaster. I have been on the phone with them several times over the last few months trying to get a FULL answer to there products. What I have managed to put together is that the Primary ingredient is Methylene Glycol, which is considered to be an inert ingredient but from my research is is actually a ripening agent. Snow Storm and Purple Maxx contain a set of B vitamins. Gravity and Bushmaster contain Sea Kelp which is actually a vessel for a natural PGR triacontanol. Also the last piece of the puzzle I am trying to pry from there cold fingers is weather there Bushmaster does indeed contain Paclobutrazol (I think it does) And this is probably the item your local Hydro Shop freaked out over. Paclobutrazol is listed a a Pesticide/Poison in most country's. It is a synthetic hormone primarily in ornamental house plants, it stops all vertical growth, and inturn encourages outward "bush like" vegitive growth and "tighter" flowering growth.
Paclobutrazol is used often and safely (I think) to grow pot to encourage tight buds or to discourage stretched out and spindly buds like is common with certian strains. But it is listed as a Poison and does NOT decompose or break down in any way, so it will stay in your soil/growing medium and will then stunt any now growth you plant into it in the future (so you cant reuse any medium).
All other ingredient I listed are totally safe (for sure), but there unwillingness to be honest about what is ACTUALLY in the Bushmaster is going to make any reputable Hydro Shop weary.
And if any one (Phill) from Emerald Triangle disagrees with my statement pick up the phone and give me a clear answer next time I call. And I will make any changes necessary.