i beg the differ.
I say epi or epi-tren all the way.
Epi sides are WAY less harsh, you could run Epi+Tren much longer. You will actually feel good and enjoy epi...plus, you will have appetite, sleep, mood, etc..to make it through all the grueling workouts and demmand on your body.
On top of that, I disagree with using steroids on superlow carb keto's and on super-high carb bulking. I think its stupid to try and gain 20lbs on any steroid in 4 weeks. It doesn't matter what you take, or how much of it you take, bottom line is there is not enough workouts to develop enough muscle maturity to gain 20lb of solid muscle thats well defined, usable, and keepable.
Theres more to growing than just taking some compounds, working out hard, and eating alot. It just takes time to have functional/keepable muscle growth.
I would certainly choose epi. It will allow you to take in more carbs without any wet fat gains if you do choose to eat dirty. Your strength won't shoot through the roof like m-drol, but the tren will help out in that aspect. Any muscle you do gain will be much much much more keepable.
I've had HUGE success with epi...Gianganitc pumps, excellent well-being, total body transformation everytime I've used it. It hurts my arthritic elbow, and my last cycle was 30/30/30 cut short at 21 days...however miraculously, without even pushing hard on my workouts from the pain, I managed to bump up from a solid 173 to a solid 181 while dropping BF in 3 weeks!
If you looking to do a huge bulk, get on testosterone for 12 weeks so you can actual gain and keep muscle. Otherwise, I would highly recommend a lean bulk on epi that won't leave you disappointed. You'll be giving up a little in the short run size/strength wise but in the end you'll be happy.