I understand man. What sucks is I believe CNI patented the yellow wavelength's, or at least the common ones(589nm/593.5nm) so they are pretty much the only place to get those from.
Hmmm, can't patent the wavelength. Only the process used to produce them - which CNI aren't the first nor only people to do SFG - although maybe in a pointer they are. But it's still the same process as is used elsewhere.