Everyone is going to be different but you and I are the same age, almost exact everything. I started the triple stack in July 12 week cycle with test cyp about 300 mg per week and lost 40 lbs 8 inches in my waist. my cardio was off the charts and my strength and endurance went up dramatically I didn't really track it but I know I started with 40 lb dumb bells bench and shoulder press and by the end of the cycle I could have easily thrown up 80's minimum just never did. I worked more on form with contraction and negatives with every rep. A low percentage I would say 10-15% increase but that is a wild ass guess. I would say 405 for max reps wouldn't be out of reach for you tho.