i am thinking of requeening a few of my grouchy minn hyg. hives with a gentel bee that will winter well and be tollerant of mites and diseases. does any one have any experience with these primorski/carnolian bees? http://www.honeybeegenetics.com/stockbees.html if i dont get these i am going to get some rweaver buckfast due to the gentelness. please let me know if you have experience with either