I am using Xtreme 5 Pro to make stock images and most agencies want the final files in AI8 eps format.

First small issue is that when I export in AI format (or AI eps) the file won't be accepted by most as it is not a valid AI eps. I compared files saved in AI and in XX pro and I noticed that the first lines differs a little. Anyway, I always open (because I have to) the exported files in AI to check color space, open curves and stray nodes/anchor points, before saving again as AI8 eps.

Also, it would be nice if one could force to export in either RGB or CMYK color space, avoiding mixed RGB and CMYK colors. But it's not a biggie as AI asks when opening mixed color spaces witch one is preferred.

Another things:
Why aren't blends exported as blend, instead of being converted to multiple shapes? Now, if I want to use a blend I have to "unblend" before exporting and then make the blend again in AI (or I end up deleting the "blend steps" in AI)

Why cannot elliptical fills be exported as "stretched" circular fills? It is possible to stretch circular fills in AI and make them look like elliptical fills.

Note that I'm asking "why" - if it is due to impossible technical reasons i can accept that, if not it would be nice if the issues could be fixed somehow.