I have done over 20 higher dosed pyramiding cycles over the decades and thought I would share one I just designed for a member. This member is an experienced user who wanted a 20+ week cycle. I prefer shorter runs when using higher doses but he wants to grow into a comp so he determined the cycle length. I personally would have liked to see this compressed into 12 weeks but he is set on 20+ weeks. This member wanted to use primarily testosterone and low dose deca.
*This cycle is for experienced users*
Myostatin limits growth around day 56 of a cycle. You can "push" gains by adding strong anabolics or upping the dose or my favorite, both.
Since you have little to no limiting growth factors the first 7-8 weeks there is no need to increase the dose however we must account for ester length when timing the increased dose. Timing your steroids is a commonly overlooked feature of cycle design.
Your choice of testosterone is excellent for pyramiding as I believe it must be the base of nearly every cycle design. Most experienced men can tolerate high doses with low incidence of side effects as long as E2 is controlled. It has been argued that most men reach a point of diminishing returns around 1.5 grams T weekly. I believe this to be a reasonable high end dose. I begin to experience more sides than is comfortable around 1.8 grams weekly. Around 2.5 grams I am quite uncomfortable so it is ideal to limit exposure to high doses. In other words, short durations at high doses are ideal.
Nandrolone is also an excellent bulker that has many positive therapeutic effects. I prefer low doses early in a course to prepare my joints for heavy lifting. 200-300mg weekly is plenty for therapeutic effects. For bulking, 2mg per lb of bodyweight is a good rule of thumb. Since Nandrolone can cause unwanted sides I tend to dose on the low end. I would run the deca as long as possible since it is such a low dose. Please consider 10 weeks minimum. Obviously you will need to drop the deca 5 weeks before a show.
Your choice of Letro is fine however it is a myth that it is much stronger than other AI's. AI's work about the same in men administering testosterone. One can usually see about a 50% reduction in E2 no matter the AI. 1mg adex=2.5mg letro=25mg aromasin in males. Letro does possess a slightly longer half life so dosing less frequently is fine but keep in mind the more T you administer the shorter the half life. One trial in particular proved saturation of E2 at 600mg weekly of T. In other words if your AI is dialed in at 600mg weekly it is likely you will not need to increase the AI dose even if you increase the test dose but the data is preliminary.
Week 1-6 500mg T weekly
Week 7-8 750mg T and 200mg Deca
Week 9-10 1 gram T and 200mg Deca
Week 11-12 1,250mg T and 200mg Deca
Week 13-14 1,500mg T and 200mg Deca
Week 15-16 1,750mg T and 200mg Deca
Week 17-18 2,250mg T ***
Week 19-20 2,500mg T **
Week 21-22 2,750mg T
*** When dropping a steroid you must account for this in your increase therefore I bumped the T 500mg these weeks.
** Carefully evaluate sides at this level. You may have to drop dose or stop increasing dose at this point. Monitor blood pressure and proceed with caution. Do not be afraid to stop at this level. Keep records of all effects like a steroid diary so you know what to expect next time.
Depending on your goals you may immediately begin a cruise of 300mg weekly after the course. If you have a show you will likely need to drop the testosterone but you may run anabolics like tren, winny or anavar during this time. After the show I would run a cruise dose of T so you don't crash right away.