I have to confess I use a helper tray but I think you get better development using just the simple pour without a tray of any sort.
I reuse my developer mixed 50/50. I usually use a sugar developer and try to keep the time around 15-20 seconds for positives.
Like Joe I use sugar developer for around 15-20 seconds (I only shoot positives right now), but use new developer. I'm using ~20mL of developer on 5x7 images developed in hand, no helper tray. I'm looking at moving up to 8x10 for which I have built a helper tray. If anyone is looking for an 8x10 helper tray, I actually built 2 and someone would be welcome to the 2nd for say $20 plus whatever shipping is.
Let's see what I've got in the magic trash can for Mateo!