Marksman Building?

my little experience with marksmen, not cold numbers on a piece of paper allow me to say this. it looks ok till 122. after that it is pretty uneffective. get that lv 9 se ASAP. 9 se, 1 boost, 1 fp and 1 db if by then you passed se 20 go ahead and get it to 20. then you can go back and get some boost. id say 11-16 boost is nice. then either go back to se or if you dont have the book and dont expect to get it anytime soon go and pump pierce. but like others said SE > boost. when you get SE to 29, then go back to boost and get it to 27. not until then should you go all out with pierce. even with the 1 second charge pierce is prettyuseless till lv 21 when it can hit all 6 monsters. pierce is nice but it takes a lot to get it where you want to use it and until then you better depend on a good solid strafe to get you there. oh and i would trow 1 point in snipe for the cool factor somewhere in there.

my little view on MM skills go like this
SE > Boost > Pierce > DB to 21 = Snipe > Frostprey > blind.

for the the hardest part would be to decide if i want snipe or db first. it would depend on new maps and whatnot when you up there. if best map is mobs, obv you go db. if it is newty like go snipe.