Well, i've played the Bongo, and I can tell you - it has "wide" string spacing - and I've *never* played an ibanez that had anything but narrow string spacing. I don't have the measurements, I just know what when I sat down with a Bongo 5 at GC, I went "wow... kinda wide" (I usually play a Zon, which has narrow strings...)
I've not played a Bongo, but I know the spacing on my BTB (monorail) is pretty wide!
Tho granted, the SR's generally are narrow, the one's I've played anyway!
Haven't considered the BTB because I haven't tried playing it before. And well the 4005 is £200 cheaper than the 5005 and the black 4005 looks waaay better than the 5005 in my point of view![]()
I'd strongly suggest trying one if you can
Personal preference again, but I just found the BTB's to surpass the SRs. Tho, I'm not as big a fan of the most recent "updates" to the BTB's shape.
I too also know the pain of buying in the UK, and will suggest looking used, tho neither of those basses will be common on the used market!