Neopan 400 in HC-110

After following JBrunner's advice about developing tri-x in HC-110 at 50:1 I've decided to soup 3 rolls of neopan 400 using the same formula.It could be that the impending hurricane/tropical storm is effecting my brain but I can't seem to figure out the development time.
Solutions anyone?

Judging from the differences in XTOL, I would say develop the Neopan about 20% longer than you would Tri-x.