For maximum loads:
(1) L-Arginine, 1000mg strength, Taken 1 time daily = 1000mg NOTE: Avoid if you are prone to herpes outbreaks. Can increase their frequency. L-Arginine does seem to increase erection hardness, but may not actually contribute to increased ejaculate volume, so it can be removed from the supplement stack with little consequence.
(2) Zinc, 50mg strength, Taken 1 time daily = 50mg
(3) Pygeum, 100mg strength, Taken 2 times daily = 200mg
(4) Lecithin, 1200mg strength, Taken 1 time daily - 1200mg
EDIT:
I've had some success with my own "Holy Grail" supplementation. I live in Canada, and all of the following supplements are available at Shopper's Drug Mart at relatively low prices if you get the generic "Life Brand" formulations. I've also included some supplements (namely the Omega 3s and Vitamin D) which I take for general health and well-being. These two may or may not have any actual effect on increasing ejaculate volume.
My Supplement Regimen:
────────
(1) JamiesonTM Omega-3 Select - 1000mg Fish oil [containing 300mg EPA + 200mg DHA] - Taken 3 Times Daily = 3000mg/day
(2) JamiesonTM Vitamin D - 1000 IU - Taken 1 Time Daily = 1000 IU/day
(3) JamiesonTM Zinc - 25mg - Taken 2 Times Daily = 50mg/day
(4) LifeTM L-Lysine - 1000mg - Taken 2 Times Daily = 2000mg/day
(5) LifeTM L-Arginine - 1000mg - Taken 2 Times Daily = 2000mg/day NOTE: Avoid if you are prone to herpes outbreaks. Can increase their frequency. L-Arginine does seem to increase erection hardness, but may not actually contribute to increased ejaculate volume, so it can be removed from the supplement stack with little consequence.
(6) LifeTM Maca with Ginseng - 1000mg [containing 500mg Maca Powder + 200mg Korean Ginseng Powder] - Taken 2 Times Daily = 2000mg/day
(7) LifeTM Prostate Complex - [containing 160mg Saw Palmetto, 100mg Free Plant Sterols, 75mg Nettle 10:1 Extract, 25mg Turmeric Extract, 25mg Rye Flower Pollen 20:1 Extract, 25mg Pygeum africanum extract, 1mg Tomato Extract] - Taken 2 Times Daily = 812mg/day
(8) LifeTM Lecithin - 1200mg - Taken 2 Times Daily = 2400mg/day
────────
*The LifeTM Prostate Complex is great because it contains 3 key ingredients known (anecdotally, at least) to increase sexual potency and ejaculate volume, namely Saw Palmetto, Turmeric, and Pygeum africanum, and it only costs around $20/bottle.
If you take all of these supplements, get lots of cardiovascular exercise, do kegel exercises daily, drink 8 8oz glasses of water a day, space out your ejaculations by 2-3 days, engage in lots of edging (e.g. sex or masturbation without ejaculating) during the week, PLUS make sure that your sex sessions involve lots of foreplay and take a long time AND that you are brought to the edge of cumming many times without climaxing during sex, when you finally finish it will be quite the fireworks display. You'll be shooting like Peter North (or, at least, you'll be shooting more cum than you are used to).