Experience with Superior 1000lb Helper Springs?

I would like to add some small half helper springs, similar to Hellwig 550. When looking at them on Amazon, I see several other models also listed including these 1000lb ones from Superior. Since this is an experiment, I'd love to spend $40 instead of $60...anyone have experience with these?

https://www.amazon.com/gp/product/B...-1e8e-50af-8cbc-a6bdd5801c18&pf_rd_i=15732171

 

I have been looking at the hellwig helpers a bunch lately. I do not want to lift my truck, just fix the sag.
What makes you want 1/2 helper springs vs full? It shows a weight 550# vs 2000# on the helwigs, but not really sure what they mean.

I run a Leer cap on my truck that I estimate at 200-250#'s. I also have a sleep platform made from metal and plywood that I estimate at 150#'s. I tow a small 5x8 enclosed trailer with my mower in it that is about 2000#'s.
Not sure if the 1/2 springs are enough, or do I need the full springs.
I emailed hellwig to ask their thoughts but have not heard back yet.

 

I want the half because I am a timid mechanic with a very sloped driveway. The 1/2 can be installed without touching the axle ubolts, just bolt right on. I just want mine to reduce a little bounce when towing, but I read they are better for your application of restoring spring height from bed loads.

 

If it matters to you, the Superior springs look silver, when the Hellwigs are black.

I had Hellwwig 550s on my truck a long time ago, but eventually replaced it with a complete AAL.

I'm tempted to buy another set just for piece of mind on my next move. I'm guesstimating over 3K pounds of stuff and that's in addition to the almost 2K pound uhaul trailer.