Hi and welcome.
First of all, please post a photo of your enclosure and provide info regarding your setup, temps, and humidity, etc.
If this is your 2nd week having him, there's no reason to try and feed him twice. It's stressful for a BP to change enviorments so give him time to adjust and don't handle until he's taken a few meals from you.
In regards to feeding, don't handle him beforehand. You don't need to wake him up. That will only stress him out.
Where was the previous owner getting the live weaned rats? Is that source accessible to you? Best advise would be to feed him what he's been eating last.
How are defrosting and heating up the F/T prey? What I do is defrost at room temp for about 5-8 hours (im defrosting small and medium rats) in a ziplock bag. Once I'm ready to feed i get a tupperware and fill it up with hottest tap water and throw the ziploc in there for about 5 min. Then i feed right away before the rats cool down.
Also, what time are you feeding? It's best to feed at night. I personally feed around 10pm.
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