My advice would be to try clip-less again. You have been getting comfortable on your bike for four years, things have changed.
I had a road bike in the pre-clip-less days with cages and I refused to tighten them. I would keep them just loose enough to slip in and out of. It would give me the creeps watching my husband reach down to tighten and loosen his.
I was road bikeless for almost 20 years. Got a road bike again last Fall. Took it out a few times on flat pedals while I was waiting for my shoes and figured I would be a mess when the clip-less were installed. Surprise! I took to them without a problem.
I am pretty sure it is easier to snap out of my Speed-Plays than it would be to slip out of a grippy rubber band thing.
Take a deep breath, think positive and go for the clip-less.