The RoadStar Side Brackets (MEM9844) move the shield approx 2" higher and closer to the rider. The shield will sit over the tach. You'll need a couple of additional spacers and (2) longer 1/4"-20 hex bolts:
BTW, i wasn't the pioneer of this mod .... credit belongs to someone else 
Here he is and this was a FIND that i saved on my Hard Drive: http://rswarrior.com/forums/p/47399/670311.aspx#670311
starwarrior:Wed, Aug 4 2004 4:08 PM -
memphis shades bigshot refitted
you guys with bigshot sportshields might want to know this,my wifes ride had a memphis fats on it and she wanted a bigshot instead(she liked the one on mine better than hers)I ordered the (plate only brackets-part # mem9844)indicated by their website,and a bigshot shield with a 7" cuttout(they said you have to use the 9" version).As it turns out,their site is wrong,the plates are meant to fit a roady,not a warrior,but when I put em on all I had to do was put a 3/8 spacer on each side of the mount and it makes a lot tighter fit around the speedo and raises the sheild up about 2 1/2 inches higher(top of the windshield to ignition switch is 19 1/2 inches.with factory risers and bars it might touch,don't know.pics in gallery.by the way,she swears bigshot blocks more wind than fats.speaking of wind,kinda long winded,huh?