One thing to consider in thinking you need a lefty throttle is that if you are riding your sled correctly wether on left,right or in the middle the distance from your shoulder to your hand grips should almost always be the same. So if you are in a left hand side hill and you can't reach the throttle that means your handle bars are not square to your shoulders, you need to counter steer more and keep your shoulders square to your bars. This is a common problem that a lot of riders struggle with and they think a lefty will help them but it is just a band aid for incorrect handle bar shoulder positioning on your sled. When you start riding your sled with equal arm length all the time it will become very natural to you and you will have much less arm fatigue as well. Also as stated early stand as far back on your boards as possible it will help elevate your skis which will make it easyer to counter steer and give you more control. As you get better you will find yourself moving forward to hold better lines but to learn it is better to stand back. Happy sledding! Oh and one more thing never ever ever ever use your mountain strap to side hill once you let go of your handle bar and grab your strap you just gave up control of your sled to the mercy of the hill.