How far are you wanting to cast?
I use a 5ft UL and can get 60ft. If I try, I probably could get 80 or so. But prefer staying in the 25ft range. Remember, the further out you cast, the more chances your fish has to get off before you get him in.
And line makes a huge difference in casting too. Braids are far superior in casting ease and distance to any petroleum based lines.
I see that Dave stated UL's are too whippy. I won't discount what he states but I will say I have fished UL's for well over 40 years and have never experienced them being whippy. Unless you are trying make a cast that is really farther then what they are really designed for.
If you are wanting to make longer cast consistently, a UL may not be what you want.