All three are Series 2s. I got the graphite bass first and it spoiled me for (most) other basses forever. It's an incredible instrument. As far as ending up with three of them, well, I guess luck was on my side.
I gigged the 6 last night, and it is massive. My spine feels crooked, and it was only a 90-minute set. But I had a lot of fun playing it because the tone is huge but incredibly clean and responsive, and the neck, while freaking wide as hell, is really comfortable to play. I got used to the bass in about two weeks. It's my first 6.
Thank you for the compliments. Hopefully, one day I'll deserve to have three of these.