A random request.  Does anyone living in or near Bucks have an SDA200 they would be willing to fetch to my QTH? I currently use an SDA100,  but would like to establish how effective the '% +/- change' function is to fine tune my DB11 without buggering up the radiation pattern by trying to do it myself element by element. . I have high SWR on some bands (e.g. 2.92:1 on 6m) and I'd like to understand if the SDA200 is going to be a worthwhile investment before ordering it.

All expenses refunded.