there are many keys to playing strait, first of all oil is nice to have. But, you CAN get the ball down the lane farther with a flatter release and MOST importantly, you can't grab the ball. You MUST MUST have a loose grip, let the ball go and not "hit" it. If you watch Duke, you will see exactly what I mean. Also that darn Hyroad is something else, its sneaky how weak it can be and how much it can hook. A nice release with nothing much on it, it goes long and doesn't do much, you hit it and it hooks. Duke shows it, thats why he is one of the best and why we are talking about this haha. Strait can be done on house shots, if YOU can't do it, YOU can't do it. I went through 3 yrs where I couldn't do it any more, I worked on the release and voila I can go strait again on the same house that I was complaining about it in. Another part we all fail to realize is the balls these days are extremely aggressive, very few will actually "want" to go down the lane. Get a pearl, get loose and watch it happen. Once your hand gets to the hook position though, you won't do it. I struggle to go strait when I get tighter with my grip, if you just let it go, then it can go long and not terribly strong.