As Testosterone Propionate is, of course, Testosterone, it suffers from moderate aromatization which results in the Estrogenic side effects of bloating, water retention, elevated blood pressure (as a result of the bloating), and risks of gynecomastia. This soft and puffy look that bloating brings to the physique is generally undesirable for most users that wish to engage in cutting cycles or lean mass cycles. Therefore, Testosterone Propionate must be utilized with an aromatase inhibitor in order to disable the aromatase enzyme and eliminate the water retention effect of the Estrogen conversion, which should result in a harder looking physique without the soft puffiness. In doing so, Testosterone can successfully be utilized as a ‘hardening’ and cutting compound, as well as for lean mass gains. Some individuals prefer the water retention, convinced that it aids in protecting tissues and connective tissue from the stressors of heavy strength gains and heavy lifting, and therefore Testosterone is preferred as a bulking and strength gaining compound in this case. In any case, Testosterone is also an excellent compound for all-out bulking and strength gaining cycles, which is what its main use seems to be among bodybuilders and athletes. It is a very versatile compound that can provide the anabolic strength necessary for bulking phases.
It should be noted that in theory if one was to consistently suppress your natural estrogen levels for a long period of time, this would negatively impact your health, including your cholesterol. Due to the ability of Letrozole- to inhibit estrogen so much, this should definitely be a concern to most users. However the research that has focused on the relationship between use of letrozole and cholesterol levels is rather inconsistent in it's findings. Many studies have concluded that the compound is detrimental to both a user's HDL and LDL cholesterol levels, while other research has found no link. Obviously individuals are best served to monitor their cholesterol while using any compound via blood tests however barring that, letrozole should simply not be run for extended periods of time if at all possible. Doing so could cause serious medical complications.
Along with the issues related to blood lipids is the fact that many users complain that their libido is dramatically reduced when using the compound. This is related to the fact that estrogen is partly responsible for the regulation of an individual's sex drive. Since Letrozole- is so potent it can often drive estrogen levels too low and this inhibits a user's libido. To avoid this users can lower dosages, but some anecdotally report that even extremely low doses of the drug can cause problems. If this is the case a less potent compound such as exemestane or anastrozole may be a more appropriate option.
Thinking about all the suggestions here I think I might like RoidNoids best. Use the sauce eod at about 1/4th the weeks dose to help stability with an unstable compound and get your longs and shorts all in one. If you have the p and e then there are many ways to do it. Maybe to keep you about where you like on mg's hit the E twice a week at 150 per and the prop eod at 100. Learn to count prop mg's for the week though because people are making the mistake of counting the whole weeks mg's and it doesnt work that way. Its like saying you took an aspirin on Monday and its still working on Sunday, its not. Prop for all intents and purposes is dead in 48 hours, 72 completely dead. So if you use 100mg eod those two shot are both active at the time of the second. However, by the 3rd shot the first is gone. This means the highest number of mg's present i n your system at any given time is about 200. So 100 eod is close to 200mg a week of long ester that will be full strength all week. Yes prop is more effecive in my opinion and some will say a little stronger hit than when compared to longs but its not strong enough that you would cut mg's in half to figure equivalent and if you count the whole weeks mg's thats exactly what is happening.