Decided to try some new stainless steel rounds (long time DR Hi Beam/Lo Rider user, previous Rotosound Swingbass 66 user). The ProSteels kinda caught my eye due to the fact that I enjoyed the XL nickels (although I now have a nickel allergy), the environmental stance of the company with their packaging, etc, and lastly the price. I picked these up on sale at Elderly online with a coupon and they ended up being about $11 a set! Here's my thoughts: These strings remind me of Rotosound Swingbass 66 which to me is an awesome thing. They sound and feel very punchy and aggressive, maybe a tad less than a new set of Rotos. Previous posters have said that they seemed scooped but I actually hear an increased midrange compared to the DR sets I normally use (ain't saying much I know). The thing I'm really enjoying about them is that they respond very well to fingers and pick which is what I really loved about Rotosounds. The DRs to me seem to respond better to fingers and due to the smaller windings actually increase my finger noise. So far I'm extremely impressed.