Hi, I'm currently looking at upgrading but I'm having a hard time deciding. I'm not looking for any specific sound. I'd say I want to upgrade mainly for getting a "woodier" sound but not a one trick pony. Versatility is the name of the game for me. Also I look at improving the action of my bass. The BTB is no slouch but compared to either of these I'd say it feel like a budget bass... The problem is that the 3 basses I've got my sight on are sold by different stores here and none of them have the same amp in demo. So it's though like hell to A/B them. So please comment on my initial impressions. I've tried the Cirrus 5 Walnut using an SWR Workingsman 12. I found that, of the 3 it was the one that sounded most like my BTB (I know I'm sinning saying so ). The neck feel and action was FABULOUS. The tone is definitively deeper than my BTB and at the same time more defined I'd say. The Cirrus had the best harmonic I've heard so far The StingRay-5 was tried using a Bassman 100 and it was 2 months ago so... From memory I'd say it was fuller and rounder (in series) than the Cirrus, more punch than the Cirrus (Parallel) the neck felt great but I think I prefer the Cirrus there. The tone appeared WAY more "woody" than the Cirrus ?! Is this my imagination? Anybody could confirm that? And the Thumb-4 BO using an SWR-350 with a SWR 2x10 enclosure. After all the hype I read surrounding these I was expecting more. Of the 3 it has the "woodiest" tone, the action was really high so it's though to assess its true potential. I really like the back of the neck and the fingerboard (Wenge?) I found tonal variety was limited, but I only had 10 minutes (store was closing) and I'll be returning. It it matters I'm playing fingerstyle and slap and my main use is for recording in my home studio. So which one is easier/better when sitting in a mix? If it is of any help I'm upgrading from a BTB-400 and an ATK-300 Fretless. I intend to keep the ATK but might get rid of the BTB if I get the Cirrus since I feel the Cirrus cover the BTB tonal palette. No being able to compare them side to side is though to choose. So anybody mind to share their feel of these especially if you own 2 of these? Is there any particular issue I should be aware of? (I know about the neck dive of the thumb ) Talking about versatility using brings mention of G&L, well altough I like them there's never any "magic" when I pick one up. I'll be selling my most prized guitar to get that bass, so I want something special. I just bought a house so that next bass should be my last for a while Thanks and sorry about the long post!