I am currently at week 5 of a test e 600mg pw/ tren enantate 400mg pw/ EQ 500mg pw & winny 40mg pd. I have made great gain started at 167 currently at 184 (Bf went from 14.4% to 8.9% over the 5 weeks. I am going to add IGF-1 starting at week 6 ( 5 weeks ) should I add slin to assist the IGF-1 ? & if so for how long ?