paddycook
Subscriber
Ektachrome 100 saturation is fine as it is.
The problem I see time and time again is the lack of applied skill by photographers in modulating a film's saturation to suit their or the scene's requirements. That applies to Velvia, Provia and E100. A polariser in specific circumstances (diffuse/overcast light) is but an easy way to provide additional punch without wishing for the camera to be loaded with RVP60 instead.
Kodak designed E100 to have a much more natural palette than Velvia, so why do you want the unique look of E100 to appear more akin to Velvia?
Velvia 50 & 100 and E100 are used regularly in all of my landscape work.
Regarding availability, we don't have such problems here in Australia sourcing Velvia, Provia or E100 (or even some obscure films); it might be a localised/(USA) supply chain problem. In any case, photographers here by and large purchase film online because of high retail mark-ups — another factor that could be impacting availability in different markets.
Just P2 RDPIII to EI400. Done.
Ain't nothing natural about E100's color palette. Unless you live in Blueworld....