Do you mean high dosages of gh or the slin? i was thinking a 8 to ten iu slin shot preworkout. but persoanlly i could def go with out the slin, i was basically just trying to get my body running anabolically the best possible, which is why i had the idea for the slin.
you only need insulin if you use high doses of GH, which increases your fasting blood sugar (at least for most guys).
you cant COMPLETELY manage that with rapid slin, not even if you use it with every meal but its better than nothing
chronically high fasting blood sugar = insulin resistance (and a myriad of other health issues)
chronically high insulin levels = insulin resistance
high dose GH is a vicious circle in that regard