But it appears that if you want to mark the present position a quick way is
to press the inner knob to activate the cursor. The cursor should start at
the present position. Now press ENT to create the point.

Also, on the waypoint creation page, hit the CLR button when one of the
names of a waypoint for giving a radial reference is highlighted. You
should get P.POS

I have some tricks on using the 430 for navigation in the navigation section
of my book at www.cockpitgps.com. Essentially, use the map for situational
awareness and the data fields for precision. Configure the data fields to
show TKE, XTK, DIST, and WPT. TKE will tell you how many degrees to adjust
your heading in order to parallel the course and XTK will tell you how far
off course you are. The big deal is using the TRACK data (TKE is the
difference between DTK and TRACK). You can just fly the GPS with the CDI
like a VOR, but using the track information such as in TKE should make it
easier.

Hope this helps,

John Bell