Been using 8IU GH for around 18 weeks now, having very good results

Got a few vials of IGF here that I plan on using, Do you guys run the GH and the IGF at the same time? Last time I done it i dropped the gh dose down to around 2 iu per day when using the igf but this time i have been advised to keep it at 8iu and run the igf as norm?

Interested to hear your take on this..