The problem with that theory---other than getting people to actually DO it is that there are TOO MANY tools that come idlin' up the on ramp doin' 30-40 mph when the rest of us are doin' 65-70. It REALLY tests whether "do I want this moron in front of me?"
On top of that, at least in WA and ID, it is the MERGING PERSON'S JOB to get up to speed and "merge smoothly" with traffic.
