I'm not a fan of LEL's reviews for a number of reasons, so I don't give them much credence. The edge on the BTB isn't all that sharp, certainly not as bad as most slab sided basses and guitars.
I ordered mine blind, new from a store about 1500km away with no return possible. Sometimes you just have to jump, and adapt.
I can only offer the hope that you like them, especially how it feels ergonomically on you as I can't possibly know this far away if you will.
I prefer the SRs over the BTB, but not by much and could happily play either exclusively. Don't listen to the squawkers online that deride the tone and tell you that you will need to change the electronics, as they sound fine and are just a bit bland, not having a specific character. It's a bit like someone telling you that this cake tastes horrible when it's coffee cake, and they don't like coffee.
Not sure what else to say, but ask and I'll help if I can.
PS: The 846v is 33" and 16.5mm spacing so it's an odd duck, but I'm not really fussy about all that as my fave 5 is 34" and 18mm and my newest 6 is 35.5 - 33.6 and 16.5mm (SRMS806) and I'm enjoying it a lot after getting it yesterday.