Digitalcrownrotation variable stride value

Question

I'm trying to code a variable stride value for my digitalcrownrotation but can't get it to work. In this example here I'm using a conditional value in the "by" parameter: self.counterValue < 10.0 ? 1 : 20. Any idea what I'm doing wrong ?

struct AdjustTimeView: View {
    
    @State private var counterValue: Double = 1.0
    
    var body: some View {
        VStack {
            ZStack {
                Clockface()
                VStack {
                    Text("\(Int(counterValue))")
                        .font(.headline)
                        .fontWeight(.medium)
                        .foregroundColor(Color("MyBlueColor"))
                        .multilineTextAlignment(.center)
                        .focusable(true)
                        .digitalCrownRotation(self.$counterValue, from: 1.0, through: 180.0, by: self.counterValue < 10.0 ? 1 : 20, sensitivity: .medium, isContinuous: false, isHapticFeedbackEnabled: true)
                    
                    Text("min")
                        .font(.footnote)
                }
            }
        }
        .navigationBarTitle("Adjust time")
    }
}