Actually I want to write this 2 weeks ago but it keep slips my mind due to job load. Me & my wife are using regulators with following setup: Scubapro Mk25 & S600, Sherwood Minimus Octo, and Mares dual/triple gauge.
Even these regulator set only clocking 40+ dives but it's already more than 1 year and to maintain life time warranty for Scubapro we decided to send it for service at authorized service center. Ok everything are fine during servicing (nice reception, good info, etc) and I remember specially asking them to change/check all o-rings in our gauges.
Upon collection we tested our regulator and we were happy with it.
In Sept we had our Menado trip and using regulators for the first time after servicing, on first day second dive before we gear up on the boat my wife open her tank valve then "pop" and air gushing out from the gauge swivel joint. HP leakage is quite serious lost about 20-30 bar within 2 minutes when we tried to trouble shoot the leak. Since we were sure that the swivel had problem, boat crew t-loan us their spare gauges (lucky!) if this happen in Bali on jukung dives it will completely ruin our dive trip for the whole day.
After the dives completed and returned to resort me & our DM tried to troubleshoot what is the cause of leaking, and it's simple matter one small o-ring on swivel neck blew. I am quite sure o-rings were old ones, meant it never been replaced during servicing. It was big disappointment and I checked my service bill it never mention that my gauge had been serviced
that what I call bad service.
Since they serviced my Sherwood octo what is the reason not to service our gauges? If they don't want to service is just let me know, I knew plenty of service centers willing to accept my money to do the job.
Anyway I changed both our regulators set gauge to scubapro now but I still resist not to change the Octo since I don't like Scubapro octo design.
Next year I will try another service center.