I read your item about Korkers on my other post. That's nice to hear. I've been meaning to contact them with photos and stuff and I have no doubt they'll do something being only 3 months old. Issue is that every low end Korker boot (Less than $150) I purchase falls apart real fast so I'm not sure I really care cause the next pair they send me will be ruined next summer too just like the pair before this one. Pretty much any brand of wading boot in that price range are crap so I don't hold that against Korkers. Their interchangeable sole are a great idea so they are hard to move away from. The Simms Rivershed Boots I have cost me $239 a few years back (before moving to Korkers) and you can definitely tell the difference in quality top to bottom. Like every single thing about the boot is better. Amazingly comfortable and easy on/off too. One should expect that in a boot that much more expensive though. Korkers and the DIY method are an issue though as you can imagine.
A few other upgrade aspects of the bars. First, they halt any wear to the sole of your boot. The bars take all the wear so assuming the uppers of your boots are of high quality, boots will last you for years and years which will be a first for me. The bars are aluminum so they are pretty light. The package was 1.5lbs and considering your dealing with leg muscles it was a completely unnoticeable difference. I, of all people, understanding getting caught up in the smallest of details of spinner fishing though so if the extra lb is a hang up than these are definitely not for you and I could appreciate that haha. The one other HUGE item to me is that, yes the bars are better than felt, but they also don't transport organisms from stream to stream as well as felt and to me that is a major thing. I hate felt for that reason but also used it for safety. To not have to worry about that eases my mind a good bit.
I have looked at the alumitrax sole from Korkers but $60 is too rich for this fisherman. I think Korkers and bars are probably not the best idea in the world as it ends up costing a lot more then other brands of boots that allow you to change the bars only. The bars will wear out and need to be replaced and other boots you can do it for half the cost. I think this is the one area where Korkers fall short.