Although I am usually not inclined to posit speculations on why a particular drug does or doesn't do something, in this case I will. Im guessing that the higher doses of Anadrol cause enough appetite suppression (at least anecdotally) to make eating rather difficult. It can also increase insulin resistance and glucose intolerance (5). This has the effect of making macronutrient absorption more inefficient, and could also be a factor in reducing gains when the dosage goes over 100mgs/day. Unfortunately, Anadrol also has a reasonably profound effect on your body's natural hormonal system, on par with most other oral steroids , but not as bad as most injectables, and its certainly not as harsh on your lipid profile as many anabolics are
My favorite pre-workout rush stack is 50mg ephedrine, 400mg caffeine, and 3-5 Thailand dianabol. Not to get ahead of myself but the amino acid L-tyrosine will work by its own mechanism to stimualte neural firing and immediate strength gain (for this you will need at least 2, not more than 4 grams). Make sure you have an empty stomach, add some carbonation (like a Red Bull), and the whole mix gets into your system much faster. Yeah, I dreamed this once, I umm...never actually did it. Remember too, I am fairly young and although I may be a physique/physiology,drug/bodybuilding obsessed maniac - have no cardiovascular risk factors (high blood pressure, cholesterol, clogged arteries, etc).
Post-cycle therapy is not difficult. In fact, if you want to continue enjoying your Anadrol results, it is necessary. You will need a drug called a Selective Estrogen Receptor Modulator, or SERM. While its main purpose involves binding to estrogen receptors in such a way that it blocks some of the actions of estrogen, it has the added benefit of stimulating the production of LH and FSH, or Luteinizing Hormone and Follicle Stimulating Hormone, respectively. These two hormones tell your testicles to produce testosterone, and this is important for maintaining your gains post-cycle.