Hey Jim,
I inject between 5 and 10 gallons per week. I have several of Bear's injectors in different sizes. I also use 6 different pots and own 60 or so injection molds. I have a large injector that I use when I am going to do a constant stream of 200 or more of one type of bait. The reason I have more than one injector is so I can inject 3 or even 4 colors at one time between molds cooling. It sounds like you and I are running the same sort of volume. I have ran over 100 gallons through my injectors and molds and have not had a single incident. the safety issue that some are claiming does not exist in my opinion.
I can speak to the customer service with Bear and it is top notch. I have had no dealings with Del so I have no idea what his is like. But Del appears to have good stuff as well.
any questions feel free to email me at bobby@keenomfishing.com. I am a voice of reason, trust me