I'll bring up a few issue to ponder on...
Let's say a company has a large stock of Rotary 123 battery tubes because running out just sucks (18650 Rotary anyone? By the way, the purchase order for those 18650 Rotary tubes went out in... Ju-freakin'-ly. But don't get me started on that!)
So, if there is a large stock of 123 Rotary tubes, they won't get sent out for rework.
Could they be incorporated into the next batch? Depends on what the "next batch" is going to be. There may not even be a screw stop in the next HDS Rotary (speculate all you want). The tail underwent an upgrade at the end of this last year 2018... wasn't published. Will do a formal announcement later, but some of you already have that new tail in your hands. Internal difference so looking at the outside isn't going to help figure it out. DO NOT TAKE IT APART!!!!!
If HDS makes it, HDS has to warranty it. If Henry doesn't think it is strong enough, he isn't going to do it. Yes, his version of "strong" is a bit different than most folks.
We also deal with the "lowest common denominator". Let me give you an example. Someone recently didn't like the "clicky" noise in their tail. The tail WAS having some issues i.e. flashing when adjusting the Rotary dial. As we know, because we are all intelligent, if the Rotary function has an issue, it is a pretty simple matter to use the Rotary as a "Clicky". Well, instead of doing this, said individual decided to completely take the tail apart, breaking off internal pieces, and rendering the light totally nonfunctional. After destroying the internals in the tail, they then sent an email to HDS stating how it wasn't built well, and that HDS should just send them another tail and in fact, upgrade them to an 18650 tail for their trouble. This is just some of the stupidity and arrogance that HDS gets to deal with occasionally. Yes, they even sent pictures of the damage they did. A monkey with a hammer would have done a better job. So, when designing and building things at HDS, Henry doesn't want people to take things apart. He doesn't want them even using a screwdriver with anything that could be stripped... why? Because Henry in his bizarre and sometimes highly annoying way... he still warranties the lights after people have done grossly stupid things to them. Yes, he is fixing said dumbasses light under warranty, even though the warranty specifically does NOT cover damage and modding... This is where Henry and I argue. Be glad Henry has the deciding vote on this.
So, these things all come into play when any new design is being looked at. What will it take to incorporate it? Can it be done with current stock? How many monkeys with hammers will break it? Does the monkey need a hammer to break it? Does it add strength or weakness to the design (if it doesn't add strength, it won't happen).
As I have said many times in the past, the Universal Clip is one fugly mother... but it is strong as hell and you can't damage your light with it. Would I like a better solution? Yes. We just haven't found one that HDS will approve as of yet.