I'd suggest keeping the arrows intact and buying new shafts and points to supplement your existing arrows, rather than cut an inch off the arrow. The arrow length change might be enough to change the flight...of course, maybe it will improve things if your arrow flight is currently not great. Shorter is stiffer.
I used to bank shoot and wade for a long time before using a boat and I definitely think some arrows will get hung up more than others. Back then I used what I had though, which was sting-a-ree style and various river points with a hand wrap. I liked the sting-a-rees because they seemed to get stuck less often, and I could twist the shaft to help unstick them sometimes. Didn't like them because they would plane off and were kind of fragile - the blades would shatter on rocks.
Grapples can be a pain to pull through brush out of a boat, and I imagine would be very easy to get caught from bank around deadfall. They also cost 50% more than most points.
If you want to try longer barbs on the muzzy points you already have, bending your own barbs is not hard if you have a vise, a vise grips, and a bolt cutter. Go to a hobby shop and buy some piano wire...3/32" (.093). K+S engineering, a pair of 3 ft sections are usually $3 or so locally, and easily enough for 12 barbs. Just don't try to cut it with an electrical side cutters! Use a bolt cutter.
The only times I have luck with standard 1" barbs is in cold water, so I've been experimenting a bit this past year. 1-1/2" to 1-3/4" seems to be a good length for holding soft fish while still able to penetrate well. But if they are squeezed poorly, they will stick and won't swing cleanly.