2nd year beek. Last year bought 2 nucs. Went to bee yard, picked up 5 frame cardboard nuc boxes. All went well. This year contacted different supplier. His process is for me to bring empty boxes to his bee yard & he will transfer 5 frames to my box. I will close it up & take em home. Is this an approved method or will I lose lots of bees & possibly the queen in the transfer process.