I have been shooting ramcats for three years and love them,but the reason they fly just like your field point is because the ramcat is the same length as your field point,thus giving your arrows an equal paradox (bend) in the arrow.That is why most broad heads including expandable can not fly the same as the field point,unless it is tuned correctly. Even though they weigh the same, one is longer than the other, which means they bend differently ,so you have to tune your bow until you get them bending the same.
http://www.youtube.com/watch?v=9dvREQSH ... re&index=3 Any broad head that is short which gives you equal arrow length will fly the same as your field point,that is assuming you have a good paper tune on your bow already.
HAPPY HUNTING