There are getting to be fewer and fewer revolver gunsmiths as time goes on. Those that are left have a months long waiting list. Then there is the cost of shipping your gun, and the chance it may be lost or stolen in transit.
One of the primary reasons for the RevUp hammer kit is the ability to ship it to where the gun is and allow the owner to have a really good action simply by trading parts. If the gun owner doesn't feel comfortable doing that, he or she can go to a local smith and have them do it. There is a big advantage to keeping the gun in your possession.
The other advantage is the quality of the action after installing the kit. All the other aftermarket hammers are some (usually) lighter version of a factory hammer. They all have the same linkage and pivot points as factory.
Mine is the first one to have different geometry with a toggle linkage on the hammer that gives the trigger compound leverage on the hammer. This is clearly shown in the videos on the website using a special trigger pull gage that I designed and built. It is now patented, rather than patent pending.
Anyone can be an armchair quarterback and criticize something they know nothing about. It takes a lot of time, effort, money and skill to invent and bring to market something that is truly new and different that has never been done before. So far, everyone that has bought this product has been happy with it. Several have bought multiples.
There are those who are fine with a factory DA, and those who want something better. There is plenty of room in the world for all. This product is not for everyone, but then nothing else is for everyone, either. Each person has their own set of likes, wants, and needs. We can appreciate each other as is, if we so choose.