Exact vs Close enough wormhole entrances

When you scan down a wormhole entrance, your initial 'warp to' point is 'close enough'. Generally this is about 10K from the wormhole entrance itself.

Lets assume you have already scanned down your wormhole, per http://foo-eve.blogspot.com/2013/07/basic-scanning-walkthrough-for-finding.html



Now, 10K is a long way to travel in an Iteron full of loot, or even an outclased PVP ship trying to get away.

Fortunately, there is an option.

Warp to 50/70/100 K from your initial warpin point.

Take a second bookmark from your overview.

Warp away (to a safespot, celestial, anything).

Warp back to zero on your new bookmark.  You now land at zero instead of 10K; and can immediately use the wormhole.