We had quite good representation in SLAET, then it got absorbed into RAeS, who then decided licensed engineers weren't clever enough for them unless we had a degree.
At same time ALAE were only interested in persons holding type ratings...despite the regulations at the time preventing anyone holding type rating for above 13,610lb MTOW, so had a distinct GA bias.
IMHO neither of these organisations are fit for purpose as Unions.
Ttfn