Hi
My experience:
I am a new 3880 owner and have yet to print as I am awaiting new refillable carts from China. Actually probably the same carts used by Lyson and most others, but a lot less costly.
I have used Lyson pigment inks in my 2200, 2400 and now 2880 and been perfectly pleased. Like you I have had prints in high light areas and been pleased.
For no other reasons than "what if" and lets try something else and cost I opted for Jon Conls conecolor pigment inks from Inkjet Mall in Vermont. I have the ink and am awaiting new cartridges from China.
I truly feel you would have no problem continuing with Lyson, whether you buy their carts or someone else's. Best of luck....
Martin