DIY solution to prevent leg suck

When I first starting thinking about buying a trike, I've read a lot of forum topics about "Leg Suck". A risk for trike riders, something I've never heard of when I rode my 2 wheeled M5 recumbent.

Of course, I could go clipless. But I want to go commuting on the trike and my workboots don't hold cleats.
To be honest, when I feel like riding I want to go with whatever shoes happen to be on my feet. So I tried my hand at making my own toe straps with Heel Slings. We'll see how this works out, and if not what commercial solution I will go for if necessary.

This is what I've come up with for now: Home made toe straps
First impressions: they work!

 

I've looked at the PowerGrips. But as you say, nice if you always wear the same shoes/boots. If that were the case, I'd go for SPD's. My contraption is reasonable easy to adjust.
But time will tell whether or not I stick with this solution or look for some other option.
That's part of my cycling hobby, always looking for new options or possibilities. Making it myself is just added fun.