The actual term heavy roll is kind of a subjective term.  However generally speaking you are correct. All other things being equal a high track will tend to read earlier than a lower track which means more more axis tilt, which promotes early skid. 

However, higher track forward roll is preferable if you can generate enough ball speed.  I suspect your difficulty is a combination of high track and lower ball speed

Think of a drag racer getting off of the start line. "Heavy forward roll" is comparable to that. The ball seems to be rolling forward faster than the forward momentum. The more forward roll the better the pin action. Watch some of the high score bowlers, they all have very heavy forward roll when the ball hits the pins. This "roll" keeps the ball from deflecting when it hits the pocket. Even the straight ball bowlers do better when they have "heavy" forward roll. This action is achieved with upward finger lift at release. If you come around the side of the ball, it will spin instead of "roll".

There are two things here that are kind of being combined.  There is tilt and axis rotation.  A high track is generally low tilt.  Combined with this if you have low rotation you ball will want to read early.  If you have high rotation your ball will over read everything.  More skid in the oil and over hook in the dry.  As avabob says, you will outhook your rev rate.  Low tilt/high rotation was good in the urethane era, not so much with reactive balls.  Medium tilt and rotation is what you should try to achieve for the best ball reaction most of the time.

Thanks for all the input! Do I like asymmetrics better? Yes. Do I ever get to throw them? Not so much lol