Unfortunately, the second set I installed had intonation issues with the wound D and A strings with the D one being so bad that I finally couldn't take it anymore and tore open a set of regular EJ45s to replace all basses

D'Addario EJ46FF classical guitar strings are a nice set of replacement strings.

I installed each set in a different guitar and in both cases the first and second strings broke shortly after installation

If your Classical guitar has a dark sound and you want it to sound more brilliant as well as louder, this is a good set to go for.

This set of strings made it pleasurable to play.

If you normally play steel strings, but switch over once in a while to a nylon string guitar this is an excellent set of strings to consider.

D'Addario is infamous for it's faulty high E strings

The high E string broke after playing it several times.

Little E breaks if you look at it funny.