The advantage of the Low Angle Jack is it can be used either left or right handed. For some shooting tasks this is a handy feature. Derek Cohen made a "hot dog" handle for his LAJ. It looks like there are two posts at the top of this page:

http://www.inthewoodshop.com/ShopMadeTools/index.html

Here is one made for a Stanley/Bailey bench plane:

http://www.sawmillcreek.org/showthre...25#post1320425

The dedicated shooter might be a bit awkward for non-shooting board tasks but would likely be a bit better at shooting. The lower effective angle would cut with a little less work and likely leave a slightly smoother finish.

Not having used a dedicated shooter my only comment about the comfort of use is that my LAJ, an LN #62 is a touch awkward even with a hot dog handle on the shooting board. For my needs it is find. If you are going to do a lot of shooting a dedicated plane may be the best choice for doing one job and doing it better.

For other situations where a Low Angle Jack would be useful a Low Angle Block Plane might be the choice.

Over time my LAJ has become my dedicated shooter. It sees occasional use at other tasks.

jtk