Black vinyl tubing - hard vs soft brand

[Aqua Splendor]

Hello,
I've been using 2 different black vinyl tubing, 3/4", one from Lee's I think that is freaking hard to flex and another brand Kuri-tek, softer and I appreciated that one.
I was wondering if anyone had experience with Lifegard tubing vinyl pipe, is hard to flex, does it retain its shape constantly or is soft enough?

Or if you have any recommendations, I'm looking for something soft, perhaps not like silicone.

 

[MarineandReef Jaron]

We sell the Lifegard tubing and I would describe it as relatively easy to bend. Unfortunately my favorite bendable tubing is the Python tubing but they have stopped producing it except for the 1/2in. It was medical grade and super flexible.