Personally, my results using ROCKSOFF have been as follows:
using it as per the instructions on the bottle you get a very ROX- like result- dense buds and reduced resin and smells, but a much increased yield. The effects are more pronounced in hydro than soil for obvious reasons.
However, if you use it in the last 2 weeks when resin formation is established and you use it alongside a product called Carbo Plex also by Evoponics then you get the benefits of the weight gain (which is very significant) but without the quality reduction.
I know most of you here focus on the very highest quality, but I will say this if you are doing something to bang out commercially then ROCKSOFF and Carbo Plex are definitely worth experimenting with and I think 'experimenting' is the right word as I think you need to play around a bit to find the right dose and time to use it to get maximum benefit but I am convinced after my experiences that there is a happy medium, a sweet spot that can be found to improve yields significantly whilst not being at the expense of quality.
PK Bulk by Evoponics is also shit hot and results in big weight gains, a lot of my mates are absolutely loving it. Oh and give their brassinosteroid - based Elixir Steroids a go as it shaves a week off flowering times in mine and a few peeps experiences.
Their LIQUID ICE and LIQUID HEAT are also very good and do what they say on the tin. Also their calmag contains amino acids and mollasses .