with my 8foot rod and my 4weight line. i can cast about a good 30feet. but on a good day maybe 36feet. but how do i get it to cast farther? do i need a longer fly rod? maybe a 10footer.... or is it my casting... i mean with the distance i cast it's doing great for me. but i'v been trying some lakes and seems like the fish are alittle farther than what i can cast. i see some guys on youtube and man they can really cast. it's just unreal...

only way i know how to do the long cast is let out some line and let if drift down then pull the line in.

or is that the distance for the 8foot rod.
any info with be great.
thanks in advance.