As to using the wire as a guide:
Less digging/stripping tissue from bone with a big tool(insert PAIN here). Also keeps you from stripping out the head of the screw(just went from a minor procedure in the office to a trip to the O.R.).
Erik : IBA #40645---BMW135i FOR SALE
"If my life or death depends on getting Bruce or Dana on the phone then I'm gonna die." RFlagg42
2011 TC449, 2014 S1000R, 2010 R1200GSA 30th Anniversary Edition, 2003 Ktm 625sxc(gone), 1999 DR350(gone), 2007 K1200GT (traded for the GSA). 2004 R1150R (traded for the GT)