As a professional COMMERCIAL dive technician and diver I can assure you that all professional (full time working)(even Scuba) techs are very AWARE that all dive gear falls directly into the "LIFE SAVING APPARATUS" category. It is very sad, when a diver is willing to go to a "back door" operator because of price to get their gear serviced. I have over 10 scuba equipment manufacturers technician qualifications/certifications (NOT competency - which is different) and have to sit an exam every two years, and do "re-fresher" courses, at great expense to myself (course costs,travel accommodation etc etc), in order to maintain my status. I am NOT shy to charge what I am worth, because at the end of the day, I work on life saving apparatus, not my life, but that of others. I have a duty of care, to do every job 100% correct, first time, every time! Because, if I @$*)up, it is very serious. I have customers that I have been dealing with for decades, and, whether they dive once a year, or do 500+ dives a year, they know that the life saving apparatus they rely on, needs to be serviced, at least once every 12 months, or every 250 dives, which ever is first. I have never had a customer return equipment after I have worked on it, because it is not "working" properly. I have ALL the equipment, tools, manuals, resources AND experience to know what to look for (yes, all you divers with green corrosion, it shows me you don't care for your life), how to strip, clean, replace, service, rebuild, test and adjust, for optimum performance. I know that a service kit contains parts, parts that MUST be replaced on a service. It does not mean that I can twist a spring, stretch it a bit, and hope for the best. Its ok larr, does not work! How many divers have asked to look at a spares kit, count the parts, and ASK for the old parts back. Not to re-use, but to ensure that ALL parts in the service kit was used. How many workshops have an ultra-sonic bath for cleaning, or Christo-Lube for lubrication parts (NOT SILICONE), how many work on NITROX gear, but don't offer Oxygen Cleaning services? (what's with that you may ask, well, google oxygen cleaning procedures). What I would wish for is that all divers, take as much interest in the stuff (equipment, not colour coded booties) they buy, and use, for life saving, as they do for the next destination they intend to travel to.
I really hope that this makes every one STOP, think, then decide where (and who) will work on their LIFE-SAVING-APPARATUS.