It's just common courtesy between sellers on LPF not to copy each others designs. Showing mutual respect to each other...
I don't feel that i've "copied" any designs. This process is simple and there is only one way to do it. Fill the void, add a hole. That's all there is to these things. It would be a different story if i came along selling an exact copy of one of egh's custom hosts.
There is no end to the different hosts and designs that can be used...
If you think about it, there really aren't. Not practical ones anyways. If you take all the hosts, find one that accepts an 18650 battery. Then we take the ones which are an affordable price, which I stick around the $10 range. Then find one that actually looks good.
From that you have to find one that has enough room in the head of the laser components.
If your VERY lucky you can find one that has an inside diameter close to a standard size, such as these being very close to 7/8" which makes the process a lot easier.
If you can manage to find all of these features... Jayrob already sells it.
i'm not going to tell someone no when they want me to build something which is a standard heat sink for a popular host. I feel the same way for anyone who can sell something i offer for less.
It sometimes seems you've taken the hobby out of it, and turned it into a strictly for-profit business. If people can afford your kits that's great, but most a lot people cannot afford some of your prices and nobody expects you to lower them.
Now whether i consider my time less important than you do yours, or I simply have more of it to waste, i can offer stuff which is more affordable to people on a budget.
You've built up your reputation to a scale that you can't even make your kits fast enough to keep up with orders, so I don't think there is any chance of me harming your business.
If I've stepped on your toes, there is not much to say as I cannot truthfully apologize for it. I spend $2.60 a gallon on gas because oil companies won't step on each other's toes.