Digital BW, The Print

I currently make most of my prints using a R2400. I like the look of 
Piezo NK-7 inks on matte papers like Museum Etching. I just can't 
reproduce the results I get using epson K3 inks. But my wife like 
printing color or b/w on Silver Rag.

Switching out carts hasn't worked that wel for me, lots of clogging 
problems that don't occur when I run the same carts for awhile. I'm 
wasting huge amounts of money running cleaning cycles.

I have an old Epson R300 sitting around and now that Piezography makes 
carts for the R300, I was wondering if someone could tell me whether it 
would be worth dedicating the R300 to Peizo inks. In other words, could 
I reproduce the look I get using Piezo NK-7 inks in my R300? And what 
are the technical differences between the two printers?

Thanks
Paul