nice little outfit, and that Daiwa looks pristine.. welcome !

the trick with UL these days, is the braids make it much simpler than it used to be.. handling bass etc on 4lb mono was a challenge, using 10lb braid with the same diameter as that mono, gives a lot bigger margin of error.. so UL is fun for all ;-)

the reel looks to have a roller line guide, which is good. Check that it actually rotates, otherwise the braid will most likely cut it quickly.
I have an 1973 Mitchell 308 bought new, which I retro-fitted with a newer bail arm and a roller. The roller has held up well to braid over the last decade with no signs of wear yet.
The braid is definitely harder on guides than mono but so far I haven't worn anything out.

my preferred braid in the lighter lines is Spiderwire or Sufix, but the Berkley should be fine. It's still a braid but what they call a 'fused' braid.. these lines are very confusing.
A line I tried recently in Australia in the heavier weights is Gliss. It's not a true braid but similarly thin and strong, seemed to handle better than any braid I've tried. I'll try it once the water in CO thaws out..

Braids are very particular about knots, most mono knots will slip. I tend to use the Palomar. Come to think of it I don't recall a single failure with this knot in braid, which is remarkable.

my experience with Daiwas of that era, is that they would wear out..
The vintage UL reels I like are:
Mitchell 308, but make sure it's one of the newer ones with a roller line guide. I wore out the old fixed tungsten line guide just fishing mono, over twenty some years.
The Orvis 50A though these tend to the pricey, $60 and up for one in fair condition.
Shakespeare 2052 preferably one of the earlier ones with an EE or EC designation. The D series has a plastic main shaft bushing which tends to crack. It's repairable but a bit of a bore to fix.

I second the copolymer recommendation and would not use braided line on vintage equipment because they will usually not tolerate the abrasion. Especially the reel’s line roller.

And the guides can get grooved too from braid.I Had a whole set of 3 of those browning silaflex uls.New in the tubes with all paperwork.I still regret selling them but got top dollar and a 322975 in the deal.I think they are way nicer than the garcia conolon uls.

No, not foul proof. Just 3 standard stainless double foot guides plus tip top, with no inserts at all. I'll keep an eye out for grooving and change lines if I notice they are starting to wear. Thanks again for the info.!

as springer1 says - once the groove has started, it's too late. Then it's replacement time.

been thinking about the braid and guides.. currently using the Mitchell on a Fenwick SF70-4 with the Aetna foulproof guides. No signs of wear yet on these with the Spiderwire braid. An odd problem is the braid will get stuck between the wires of the first guide on a cast - I put a few wraps of tying thread around the guide to prevent this. So much for foulproof..
The Aetna guides on an Abu baitcasting rod, wore out in a couple of years using mono..
I don't much care for these guides. If they do wear out I'll replace with the new light ceramics.

For me the extra strength and abrasion resistance of the braid, is worth it over mono. The LM bass will weed themselves, the SM go digging into rocks..

I'll have to try the Nanofil. I saw that line in the new Jann's Netcraft catalog, and thought it seemed like the best choice, but they didn't carry it at my local department store, so I compromised with what I thought was the next best thing. Anyway, I did get a chance to test my new set up today, with the 6lb Fireline. Started with the smallest size Panther Martin and caught a couple of small browns. The lure seemed a bit light and hard to cast, so I switched to a little heavier Mepps spinner and was able to cast much further and more accurately. I noticed some line twist with the Panther Martin, but I added a swivel to the Mepps and that solved the problem. I thought the rod and reel handled well and I had a lot of fun, although I definitely need some practice. I caught a few more browns with the Mepps spinner and called it a day.