Roll Out Start?

Does anyone know of a ski race that does a roll-out start similar to those
done with bike races? A race I help organize has thrown this idea out there
as a way to utilize the same start and finish.

What has been discussed is to have a 4-stroke snow machine lead the skiers
for the first K or so then turn off and let the 'race' begin. The roll-out
section is about 1.5 pisten bulley's wide.

At this point it is not a likely possibility but do folks think we are
setting ourselves up for a cluster f.ck? I somewhat like the idea but I'm
pretty certain there would be a major yard sale during the roll-out.

Dave