Digital BW, The Print

In the past, when working on an image in Photoshop 7 I have done as 
much work in 16bit then converted to 8 bit for the additional work. 
When I was ready to print I resized, applied whatever sharpening I 
wanted and printed. 

The question I have - should I resize at 16bit before editing more 
in the 8bit mode?  

Thanks 

Pj