Some people cite uneven development and/or "bromide drag" with stand development.

I have never tried stand development, defined as the only agitation being at the beginning of development. But I have been using semi-stand development, which I define as 1-1/2 minutes of initial agitation followed by 10 seconds of agitation at the half point in the total developing time. I have been using this routine with Pyrocat HD for about 6 months and I am getting nice, snappy, printable negatives with no ill effects.