I was just thinking, the basis of the slammers is to masturbate till your nearly cumming then hold it back with a pc flex and performing a uli and then repeating it several times. Admittedly after you perform a slammer your not 100% erect but around 85% however it doesn't take you long to get back to 100% erection because you didn't cum. So there for if you applied this to sex and premature ejaculation and performed the pc flex and uli when your about to cum it should help you last longer, or is that just me being stupid.