As you said, by using FL14 as a flash trigger thus taking up the hotshoe is not desirable especially when one needs the EVF2 for manual focusing under macro conditions.
On another note, if you are into high-sync FP-TTL via RC which is especially handy for flash fill in, the FL14 falls short of this feature.
Yeah, i liked the EP2 with its 1/4000 shutter speed and the dial/scroll wheel but if only it had RC for flash of somekind. For me, I need the EVF2 attached all the time.
...Having said that, I don't think that true macro photography(requiring flash) is something that I would be using either of these bodies for. Unfortunately, the m4/3 format in it's great development still lacks abilities that the Olympus dslr line-up provides.
Why would you say that?
Using the m4/3 lenses and the 2 bodies I have indicated, flash macro photography ( with the built-in flash or the FL-14) that I have attempted has found the subject in shadow of the lens. I have tried to use an FL-50r (using the FL-14 to control the slave FL-50R) with both and have had no useable result. I think that a ring flash could be used with the 50mm 4/3 macro lens and you'd get some great images. Again, I tend to use my E-3 with the 35mm/50mm lenses in natural light for my photography(macro). My experience may not be like others. I envision macro images as front of glass images, pleasingly and evenly lit, something I've not achieved with this equipment. Certainly, any suggestions are welcome.