Sounds like a good set up.
However, if you have room to play a fish, you will find that an ultralight set will catch some impressive fish.
Back in the mid 1980s, I flew the bush in Alaska.
This was the "Survival" fishing kit I carried.
It is a 5 piece 5 foot ultralight kit.
I only carried 4 pound test mono on the spools.
The idea, other than the very light weight of the kit for carrying in the helicopter, was that in a Survival situation, I would be after smaller fish.
Arctic Char up to about 30 inches were easily handled.
The knife is an 8 inch blade Randal Model 18 Attack Survival to give an idea of scale.
Most of the Grayling trout caught were about a pound.
Likewise Flounder caught from a sandy beach averaged about two pounds.
(A Mussel on a single barbed hook was usually good for one Flounder per cast.)
However, I have caught larger fish on 4 pound line.
We were surveying the Alaskan Peninsula several miles below Cold Bay one season.
On Sundays, the camp boss would let me fly members of the crew to good fishing areas.
At the time King Salmon were heading up the Canoe river, and we were given permission to fish it.
Every one else in camp had heavy gear suitable for Salmon.
Fortunately, the Arctic Char were following the salmon to the spawning beds.
One of the surveyors caught a nice hen salmon and gave me a half skein of eggs.
I rigged a mini Steelhead configuration using a three way swivel for a drop sinker.
The 30" leader (also 4 pound... It was all I had) set to keep the bait about 6 inches off the bottom with a size 14 treble hook attached.
A fresh egg was put on each barb and was I killing the 3 to 5 pound Char on almost every cast.
Most naturally were released.
On one cast, I felt a bump and tried to set the hook.
All I managed to do was strip line past the drag.
Believing that I had snagged the bottom, I tried my best to get free without breaking the line.
I was getting pretty frustrated when I noticed that my line was suddenly moving upstream.
The fish was up near the surface and saw that the dorsal fin was about a foot ahead of the tail.
I had hooked a Salmon.
As luck would have it, the bank of the river was a long flat gravel bar and I was able to play my fish.
All I could do was chase it up and down the river letting it strip line and cranking it back when I could.
Finally, my fish moved into the shallows and I could see it was rubbing the side of its mouth against the smooth rocks trying to dislodge the hook.
I jumped into the river and literally kicked the fish onto the beach.
I killed it with my Swiss Army knife and yelled for my mechanic to grab my camera.
This is the picture he took.
Not the size of the reel next my hand.
She weighed in at an even 20 pounds.
This isn't the biggest fish I have ever caught, but is by far the best.
So, just because you are using an ultralight set, don't underestimate what it will handle if the drag is set low enough and you have room to play your fish.