I have a BTECH 5 watt handheld and the stock antenna, the 701G, and the 771G. For me in my non-scientific testing (my friend staying put on high ground and me moving further and further away and testing each antenna), the stock and 701G are very similar but the 771G is better by abut ~30%. Of course, that will vary from user to user, but I use my stock or 701G when within 1.5 miles or so, and my 771G for greater simplex or repeaters.