Agreed. There's only a few reasons I went Custom. The preamp is not a primary driving factor. I was perfectly happy with the preamp in the Standard.And I am even nuttier.... I bought my E5S first THEN ordered a Monarch with an ebony board.
I personally don't see the Custom pre as a huge upgrade over the standard though. The Standard pre is still killer.
I went with the Monarch as I love the shape but I think ebony, mahogany, walnut top, set neck and Duncan DCs will be a cool contrasting bass to the E5S.



