That's about it. Premature ejaculation hasn't really been a problem for me. But I know from my youthful erotic interests that the whole practice of Tantra is based upon the delaying and prolonging of orgasm. While on this subject, I remember in that book I recommended (
The Cultivation of Male Sexual Energy) some hooey about how males are only supposed to reach physical orgasm rarely because of the "loss of vital fluid." This is just so much b.s. in my opinion, and I hope you ignore it. I would put my money on the "use it or lose it" hypothesis, myself.
One of my favorite movies of all time is "There's Something About Mary" (and yeah, it's crude and juvenile. I laughed my *** off). Anyway, Ben Stiller's friend (Chris Elliot) advises him to "clean the pipes" before a date. The result is hilarious. But good advice, perhaps.

Mike