The efficiency of Mobile IPv6 Route Optimization in terms of propagation latencies and packet overhead is contrasted by significant handoff delays. Much analytic effort has recently been spent on reducing these delays, but little practical experience has yet been gathered. This paper compares the efficiency of the combination of two proposals, Early Binding Updates and Credit-Based Authorization, with that of standard Route Optimization. This is based on measurements for RTP/UDP voice traffic and TCP file transfers, which were taken in an experimental testbed.