SP5m vs. SDA - will I miss the SDA's hump?

[mountain]

I am considering buying an SP5m for use on Cingular in Seattle. I noticed it doesn't have the antenna hump that T-mobile's SDA version has. Will I miss that? Any experience with call quality in Washington State?

[Mike Temporale]

Mine worked fine when I was in Seattle last Decemeber. :)

[Sven Johannsen]

Why not the SP5, out of curiosity. Would you really use the extra buttons, that make all the rest of the buttons smaller?