Ok now i am not an expert but here goes. My lrp has the 11 dd coil the platinum has the 8" round concentric. Most of my testing was done indoors on a wood floor with some old nails in it or air tests. The depth seems the same on both machines, a quarter at about 10". Both machines id very well and discriminate good also. Both have an auto ground balance, the lrp has an additional manual ground balance. I never really new what recovery speed was, now i do. The platinum is incredible, it can seperate targets 5 inches apart even at a swift swing. The lrp is not even close but seems the same as my tesoro silver u max. The screen on the platinum is large i like it, both have nice screens. The lrp gives much more on screen info and has much more user ajustments and features. They are both affordable and function really well for their price point. In trashy areas the platinum wins. In less trashy areas i like the lrp. Untill i can afford an f75 or a minelab 3030 i dont think there is a better machine for the money than the bounty hunter LRP or the platinum.