I have a new set of Maltby KE4 Tour heads.  I have shafted up the 7 iron, and while I like the look and feel of the head, I feel the leading

edge digs in a bit too much on most hits.   How should I go about putting a slight sole grind on the leading edge of these heads to make

them interact  a little better with the turf at impact?    What tools would you recommend I use and how should I proceed?   PS, I have plenty

spare heads to practice on…..