Looking for feedback from those who have tried fitter 35 from Purina. Does it work? Is it worth the cost? How long do they need to be on it to see results? I have a heifer getting ready for a show/sale in 6 weeks and she's about where I want her now. I don't want her to get too fat or course fronted. I've adjusted her feed but don't want her to lose her bloom and muscle tone. Right now she's getting about 6-8 lbs. of a grain mix similar to AAOK's famous mix. I'm adding some full tank and a scoop of full body pellets from Sunglo (which is similar to precon from purina). I'm also giving her about a 5 gallon pail of silage per day to help fill her up and free choice grass hay. Any other ideas or tricks to hold a heifer and keep her looking fresh? Thanks.