well, since scores don't count in practice, work on form/motion, starting slow and then gradually picking up the pace.  Basically the same way one practices getting around a ball return in order to loft the caps...

Another thing that helps on some lanes is to find a mark of SOME type down the lane...could be one of the lane marks like Brunswick used to have (don't know if they still do since I packed it in more than a decade ago) or a dark spot in the wood.  Doesn't matter WHAT the mark is...just concentrate initially on seeing the ball roll over it. 

Part of what I have seen, not just in my own game but in others, was the failure to maintain eye contact with a downlane mark when trying to project...

This is the same alignment strategy that I use (squaring the shoulder to the target).
It is indeed, not a technique advocated for today's power players but I am 100% convinced that for the older style strokers like myself, it is still the best way to go.
Most of us strokers rely much more on accuracy than do most of the power players .
In addition, we tend to release the ball with our hand on the side of the ball--- at or
slightly above the ball's "equator". The mechanics of this style fare best when the shoulders (and to a large degree, the hips) remain square to the intended target line.
In addition, strokers who release the ball in this manner do better when they release the ball with a little less forward spine tilt than the modern power player. Releasing the ball in this manner will allow the ball to be released with more axis tilt.

Well- intentioned instructors often make the mistake of incorporating the mechanics
of the power player into those of the old traditional stroker style. One of the biggest mistakes is trying to get them to open the hips and rotate the shoulders until their
balance arm is pointing straight ahead towards the pins on the next to the last step
in the approach. Unless you have the ability to uncoil the wrist at release, you will
often end up missing your target to the right (for a rt-hander)  due to a decrease
in axis rotation. 

Years ago, the old strokers learned the phrase, "90 degrees and all's well" when in came to proper shoulder alignment.

For them, it's still true today.