I did one last practice climb before the season starts, single-sticking with the JX3. Man this thing tempts me to go all in and sell all my other gear.
I used the Stacked Outdoors stick and have to say that while the cam cleat of the Muddy Pro is highly effective, I really like this polymer stick, especially in conjunction with the Hybrid. Light, quiet, no moving parts, sturdy with big foot surface area. I dangle a 48" aider woven around the top bracket and through the slots in the stick so that it dangles 24" below the bottom step. The cam buckle strap is not as efficient as the cam cleat on the Muddy, but it is not hard to do, especially from the solid and comfortable seat of the JX3.
I think if you intend on using your top step of your climbing stick as a part of your platform setup you can't beat the SO stick. The company sells individual sticks at a reasonable price. Check em out if it speaks to you.