sweep cut feature and shell + keep normal constant

[battlehands]

I created this Upper Housing using the Shell feature and normal sweep options. I'd like some feedback on additional design approaches for the part - namely a design approach using "keep normal constant" in sweep options. Any additional design approaches would be much appreciated.

Attached is the part. Here is the link to the image:

http://imagebin.org/233032

It should be on imagebin for another week or so. Please do not release this part for commercial design purposes as I do not have the copyright to it.

TIA
battle.

 

[saf12]

I messed around and this is what I got.