I use Carrs products regular and have an interesting fact, my mate and i treat our birds exactly the same, we race mainly the same birds, only difference mine get Carrs oils, his dosent. Mine fly upwards to 1 hour 50 mins each morning - cocks & Hens - His flys 10 mins before they are looking down? Both have same management systems so this is the only thing we can think is making the difference. He is starting his on Carrs this week. Gives lovely silky feathering.
I give Naturavit on Sat over corn - Purifying oil Sunday and Turbo Boost Wed & Thurs. OMO