David, Pat has pretty much summed it up.
SJ-41s are way too small for a baker rig for the I Cup. Also, any treble on the market will open if the fish gets it the wrong way (well, right way for the fish!). From what I've seen over time, the Recorders hold up better than the Decoys. The Decoys were good a few years back and then they obviously changed the hook - and not for the better.
If you're using a popper like an I Cup, you're targeting serious fish. Maybe an option is to consider running big singles instead like Jobus in a 9/0 or 10/0. Look for a heavy guage single - there are lots on the markets. I find the shank on the Jobu just a bit too long to be ideal myself.
Price-wise, both Recorders and Decoys are expensive. Pretty much lineball from what I've seen in the past - depends on where you buy them.
I've attached a few photos below for comparative purposes so you can see that the difference. First photo is an I CUP with a ST-76 5/0 followed by the Decoy 10/0 followed by the Gamakatsu Recorder 8/0. It's a big popper!!