I have a RetraxProMX on my G2 with the aluminum slats. I had a RetraxOne with the poly carbonate slats on my Gen 1's. In my opinion, the upgrade to the PROMX is worth every penny. While I had no issues with the cover on my Gen1 I've seen pictures of the poly slats failing over time. My PROMX is about 16 months old and looks like new.

I don't think the Gator Trax was available when I purchased the Gen 1 cover years ago. Based on my experience with my first Retrax I did not shop around for other brands for the 2nd. I just placed an order.

 

Did you happen to look at the Peragon? Just wondering, I love mine.
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What is it you love? Just curious about it.

 

The Peragon site states that the trunk will only open 22 inches and that scared me away. Wish I new about the opening with the other retractables. Where does the drain hoses go with the Pro MX. Don't want to drill holes in the bed.

 

All of the retractable that have a rail down the side will limit the trunk about the same. Peragon is just honest enough to tell people up front and also provide a measurement. Trust me the opening limitation has no significant impact on putting even large items in the trunk.

-Mike

 

Not fond of the way the Peragon folds up.
I would prefer a adjustable tonneau that I can lock into any position.
After tons of research I learned That the Gator Trax is basically a rebranded Retrax at a slightly lower price. Been reviewing the hard trifold Tonneaus also. It can be tough deciding what I want verses what I really need. And it’s tough deciding what I really need when I can’t physically go to a store and check out demo models.

 

There's also the Roll n Lock. It doesn't use a roller system to coil up the cover, so it's a smaller package when retracted.