Potion lobbing is a skill, it takes abit of time to get used to but once you do you can do it rather well... And when you learn the time of pots.. IE: Greater is gonna take 3 secs to toss that at the enemy, quickly followed by conflag which is instant.

And Gordon be in S&K old RM

Also if you wanna be a lamer you can set up a macro... Have it toss explo, conflag, explo, explo, ect. You just gotta work out how to set it up.. I'm a fan of the "Lob it yourself"