For the Mound area, the West Hennepin towers/site will give you the best reception. I would guess if it was cloned from a RS radio, its probably set to East Hennepin since most RS stores would be in that coverage area. You will receive spotty reception on E Henn in Mound, at best. In Spring Park, E Henn would probably come in a little better-but W Henn would still be much clearer.
To check which site is programed: press manual when HSOUTH or HFIRE pop up, then press F2 to display TSYS (Trunked System) info. Then press F3 (Analyze). The control channel and alternate control channels will be listed here (down arrow to scroll through). West Henn CC is 852.61250 (E Henn is 852.36250).
Hope this helps