too much/too little wash for still size?

[dgsmooth]

cheers again all - so very new to this, been doing a lot of reading, and starting a few posts for questions (hopefully not too stupid of questions). have had pretty good success so far, sac run went through well, and I used it for cutting practise, thought I had it figured out decently well for a beginner. any-who, wondering about the yield i'm getting....with a basic molasses/sugar 23 liter wash, I got about 4 liter of 45%, and other 4 liter of fients (I didn't actually test ABV of heads and tails before storing)..... my question is running a 23 liter wash in a 58 liter keg effecting the output? should I not run the still until I have two of my 23 liter wash's ready to go?