OP, are you still doing this, or what?
Well I am, so I'll be reporting my results. But first, here's my methodology:
My experiments follow this pattern:
Baseline Measurements: I need a baseline cum load measurement to compare the effects of everything I try against. To do so, I measured my cum volume after masturbating on four consecutive days. Of course, I only needed to do this once.
I determined that my baseline load is 7.0 ml. I'm also trying to track the "sperm content" of my cum, because I'd like to boost that along with the overall load size (my semen has become rather thin and clear). This kind of measurement can only be rough, but I found that my cum is on average 35% opaque, yielding a rough sperm content of 2.45 ml.
Supplement Trials: Each trial of a supplement (or combination of supplements) will likewise involve measuring my cum volume after masturbating on four consecutive days. I will take the same supplement(s), usually in the same dose, either with breakfast or with lunch on each day.
Off Days: Supplements tend to stay in one’s body for a while, and this can skew the effects of a subsequent supplement’s trial if the trials are done immediately one after the other. To get around this, I will have three off days between each supplement trial. That’s three days of not taking any supplements at all; this should allow enough time for the effects of a completed trial’s supplements to completely wear off and not affect the trial of the next supplement. Whenever possible, I will nonetheless masturbate and measure my cum volume even on these days; with this I can potentially learn more about a supplement’s effects. Plus, cumming every day is important to the experiment as a whole, since abstaining at any point in the process could skew results. That said, I see no harm in not cumming on Day 1 or Day 2 of any group of three off days. On Day 3, however, I must cum.
My ejaculations will come from masturbation – relatively short sessions (20 to 30 minutes – this is short for me, anyway), in the evening or nighttime. I measure my loads by shooting into a small graduated cup that I got from a science supply store. The cup holds up to 50 ml.
I have sex 1-3 times per week. Days on which I have sex will count as “off” days in this experiment. This makes the experiment last longer, but somehow I’m not interested in forgoing sex for the sake of speeding things up