Were those on home built 19 reg aircraft, maintained by the builders, or were they for the whole fleet, no matter what rego type. No matter what quals a person has, things happen. I had an undercarriage failure on my aircraft through a fractured bolt. The fracture was hidden under the nut so would not have been seen on inspection. I agree that maintenance should be a part of the training process anyway, but hitting a home builder with extra dollars for something they are doing anyway is just a money grab. Charging for an L1 cert after basic training when that should have been taught as part of the certificate (daily walkaround and preflight checks) is just a blatant money grab and mini GA empire building when the L1 was always part of the training sylabus anyway, and granted as part of the Certificate. I do not feel that a certificate will make people more aware of how to chan ge a spark plug etc, no matter what npeice of expensive paper you have, human nature can intervene, and sometimes does. 7 forced landings in 912 powered aircraft in 5 years with a fleet in the thousands is statistically minimal and the L1 cert is a major knee jerk reaction that is not required. If the piece of paper is that good, how come we have forced landings in all forms of aviation. Mecanical failures are not subject to pieces of paper.