In the real world, insulin alone, or even stacked - rarely seems to do much of anything.
LR3 IGF-1 produces results for a percentage of users over 25-30 days time. Someone came up with a theory on how to stretch that out but I dont recall details. I would be curious to give IBE's new product a go, it has worked very well for at least one person so far.
I would not say at all it is inconclusive. Insulin is an addition to other things but still seems to exibit virtually nothing but a feeling of being 'fuller.' If it were me it would be IGF without question if given the choice of the two.