Okay, for about 2 years now I worked out for "the pump", and well I haven't made really any decent gains in size or strength, even when I was bulking I didn't really gain as much as I'd liked. So last month I started working out heavier, not really being concerned with the pump (with good form), and I've gained almost an inch on my arms, and gained about 11 pounds (which is decent for me). Any opinions on this?