For those that use both Aperture and at least one Nik application... If you're not doing any editing in Photoshop, is there any benefit to using Photoshop as a go-between between Aperture and Nik, rather than just sending it straight to Nik? The only thing I can think of is you might want to add each Nik app edit to a new layer, so you can go back in time a little better. Does that sound right? Any other considerations? Thanks.