Same batch-1 1/2 yeast cake,1/2 cake Why?

[JONNYROTTEN]

I brewed yoopers 60 min Ipa 7 weeks ago.(10 gallon)I racked the first 5 gallons 10 to 14 days after brew day.I had a 1 1/2" yeast cake as usual.I racked the other 5 gallons today and only got 1/2 yeast cake.Every batch I ever made I got 1 1/2cake which equals about 3 mason jars,this batch only one jar.I used a packet of wlp001 and a half packet of us05 in each bucket,so Im wondering why such a major difference.

 

[d3track]

Could have had less trub in one of the fermenters