Very nice... I have a Blue bladed ROTJ v2 as well. Of course to go along with my green bladed ROTJ v2 of course. I believe Caine has a blue too.
I have owned every version of the V2/V3/Yuma Luke saber ever. Either owned it, built/modded it. (blade colors as well) And Saberprincess, I know just about all there is to know about that saber. ;)
Lucas changed the color of the saber from blue to green because the original blue color didn't show up super well against the blue sky on Jabba' sail barge.
Another reason why my MKVI V2 has a green blade with blue FoC.