The only records are feeding, shedding and wieghts for breeding.
My animals are the F1 generation and the 1st captive bred from the W/C parents by PP and Trueblue. They are 3+ yrs old now. And will be 4 at this years breeding. I got slugs last season, but this season is looking better male is being cooled more throughly.
They are now all close to 1.8kg where as same time last year they where 1.1kg on average. Size hasn't varied much since last time measure.
animals lengths vary between 1.10m to 1.15m. My animals weren't power fed, just steady growth.
I was fortuneate to see some of the parents and Rob's holdback from that years animals and they are the same and that much bigger.
Power feeding may give slightly larger animals but you'd need that info off someone else.