For me the blast works really well, I had some bad sides a few times with longer runs, mostly water, acne, some inj. problems with scar tissue, 1 bad local infection. With shorter cycles I feel like I can run more test and whatever else and not have as bad of sides, which kick in for me at about 30 days, so 6 weeks is long enough for me, I still gain much strength/some mass and good definition. I really can't get much harder in my highly trained areas, my tri's have truly been like iron for like 5 years, and I've done like 6 cycles since then.
I also like to stay near my natural weight because being 30+lbs over it makes my back hurt, shit I'm 20 some lbs over it right now and my back hurts every now and then, like the last week.
100mg/prop/day
80mg/tren ace eod
50-100mg drol/day
6 weeks of that would be an ideal run for me, maybe only 4-5 weeks of tren depending on the sides
The gains could still be good and very sustainable, with hopefully much less as far as sides even compared to a 12 week test cycle.