Best bet is to find a good slalom ski instructor or ski school. The money
will be well spent! They can help you improve much more quickly in person.
Hard to tell what you are doing wrong without seeing it.
You wrote, your skiing a slalom course at up to 40 Mph, no comment.
I too used to slalom with a rear toe loop, and I struggled to maintain my
balance until I watched Jaret Llewellyn's new DVD. If you ski left foot
forward as I do, just let the ski rest comfortably tilted off to the left
side. You will find this position WAY easier to balance. Once you start to
feel the pull of the boat, slowly straighten your ski and away you go.
Jaret explains it way better than I do in his video "Step In the Right
Direction". I purchased it off of ridingh2o.com and it arrived very
quickly. Here's the website if you are interested:
Try slowing down your speed to 32 to 34 MPH, but if you are in Alberta stop
by and see Ken Nelson at Shalom Lake. He'll get you around all six by the
end of summer guaranteed. www.shalompark.com
(return address needs alteration to work)
One of those deep V starter handles might help keep the tip straight.
I don't require it to get up, but it speeds things up and allows for a
sloppy start going smoother.
Also try dragging the boat in gear just for tad, the rope should be
pretty tight. A really good strong skier can handle more slack and a
bad angle on the boat. Then say hit it. Usually driver has to go in and
out of gear because dragging in gear is often too fast. Also boat and
rudder should be straight before you hit it (good driver knows the boat
is set up right). Any turn at all by the boat at start will result in a
weaker start. That's why dragging helps, it assures everything is
straight and tight. If you do, you'll pop up pretty fast and save
energy for skiing.
A good driver helps too.
P.S. Your tempting me to get a rear full boot though.
I've started 2 feet in the ski behind a 50hp evinrude outboard, so I
can verify it IS possible to drag stably for a long time with both feet
Hope this helps!