Yes, very much so.

Here's the deal...

25lb Triple Fish fluoro is relatively thin diameter compared to other 25 monos/fluoros. I use it religiously as leader material for swimbait fishing (except with topwater). It has very little memory and does not show well in the water at all (its hard to see for fish).

The 30lb is relatively thick in diameter compared to other 30lb monos/fluoros. I've tried fishing it straight for swimbaits and find that it is so thick that it really isn't that great except with the biggest baits (which is what I used it for). It has a fair amount of memory (much more than the 25lb). The tradeoff is that the 30lb is absurdly strong and abrasion resistant. It feels a lot more like 40lb than 30lb to me.

I use the 30lb these days primarily as leader for ocean fishing. It's outstanding as leader material if you are plugging for striper on the beach around Pacifica. It's also very good as leader for rockfish when using braid as a main line. It's not much as a main line for freshwater, but if I was going for tuna I'd sure as heck spool it up.

Hope that helps some... Let me know if you have any other questions.