If you want a bow that's VERY easy on strings and servings and at about 19 yards will put an arrow into the back of another arrow (I know...I lost two arrows with one shot!)...take a look at the Darton line-up.

You can shoot this bow all day without worrying about...waxing the track or serving.

A little pricey...but can be had fairly inexpensive if you look around.

I know they're (darton) not part of your list...but well worth looking into. By the way...I only shoot one arrow per bullseye now!

Also...for what it may be worth..."most" modern crossbows, will shoot fairly accurately with a little getting used to the bow you've chosen and a good sight/scope and quality arrows.

Mike