I appreciate all your comments.
I honestly believe I wll buy the Curado just for peace of mind, but the question still remains just how much less reliable the SLX XT could possibly be.
I'm not a spec snob really, all I worry about is reliability and funcionality. I'm not really keen on having a reel collection, and don't plan on changing them until I lose another or they kick the bucket. Either way, I hope they last m another decade.
The spool size is not really a concern as the ~90m of line I can get into a 150 size spool is more than enough. Sizewise, smaller and lighter I suppose is better, but I've been fishing with these huge, heavy ol' Curados for days on end without really caring for it, so if the Curado is slightly bigger that'll still be way smaller and lighter than what I'm used to.
I do know these reels will last a great deal, these Curados, which I really don't now what generation they belong to, lasted for over 12 years fishing heavy bass at least once a month and even with a few salt water trips in between.