question on food size

[Snakefood]

well by the time we would switch they prey up, she will have been with me for 4 weekly feeds. The first was only a rat pinkie (because of the regurge), the last one was a juvi mouse. The next 2 feeds will be juvi mice, then the breeder gave me adults from there-on in. So another 2 feeds, on top of the 2 already. I was just wondering if I should up it to the adults in 2 weeks when I run out of juvi's (or go get more juvi's)