i happen to own the first MRI baby eagle that was ever gold Ti plated, and other than the hideous gold color it has proven to be an excellent finish. the finish is cost prohibitive though $$$$$$. the ugly color makes it fun to take to the range though, the younger guys tend to think its cool, and the older guys shake their heads and laugh at it- i tend to laugh at it too. it is so ugly , that i can guarantee that i'll never own another pistol with that particular finish.
magnum research had the pistol plated, it was their shot show gun 5 -6yrs ago. ive had the gun since then 5yrs. there are no signs of any corrosion, the only wear spot on the pistol is the top of the hammer where the slide rides over it. i use minimal oil on the pistol , it doesn't need much to function, and needs little to no oil for corrosion protection. why gold- i got it because it was cheap, i paid less for the pistol than was paid to have the finish applied and its a hand built factory custom.