... One problem is the light wieght makes for a great stroke and it is very easy to handel and play with but over time my stroke will become eratic.It seams like the longer cue and heavier wieght helps keep my mechanics straight. ...
You could have a shorter cue made to just about any weight you like.
... The second problem is If I have to reach even a little bit there is nothing behind my normal grip spot to hold. ...
You could also bring a longer cue for such shots.