Digital BW, The Print

Does anyone notice a difference in their black and white prints between 
the perceptual and relative colorimetric rendering intents?  I am 
printing from an Epson R2400 onto VFA.   I looked at both prints side 
by side and the difference appears negligible.  Which intent do most of 
you use?  For black and white prints, does it even really matter--
especially given that my monitor is calibrated and I am using the 
proper paper profile?  

Thanks,
Dan