If you have a 3ft ghost or midge tip then its main use might be for buzzer or nymph fishing but the ghost tips are also superb for fishing with wet flies / lures etc.
I owe various ghost tip lines ... 3ft, 5ft, 9ft, 12ft and 15ft.
I use them all for various methods but the 3ft is mostly used for nymphing and the 5ft & 9ft are mostly used for pulling wets on the big loughs of Ireland and for pulling lures / blobs on rainbow waters.
In my opinion using the line that you have confidence with is paramount.
One of the best lines I ever bought was a Climax 9ft ghost tip. Superb.
Difficult to get in the uk now but well worth the hassle
Climax Ghost Tip Fly Line - Weight Forward w/ Intermediate Tip