I like multipart cycles, something like 6 weeks of dbol, 6 weeks of tren, while running some test the whole time. Bulk up on the dbol, get rid of some fat while on the tren, then save the igf-1 for pct where it'll actually do something that just using more gear wouldn't do.
If you are looking for maximal growth for your time put in...use the IGF with a good 8 week test based cycle. You can't use IGF for more than 4 weeks at a time, then you will need about 3-4 weeks off till you can use it again. So use the IGF for weeks 1-4 then use it again PCT with a low dose of primo (200-400 mg/week) with some arim or letro.