I have one of them. The first thing I want to say is, like most all crossbows, check it every time you are about to use it for practice or hunting to make sure ALL screws, bolts, and nuts are tight.

I noticed immediately that the string serving wears fast. The reason on mine was that the rail has a sharp edge where the string leaves the trigger. This tends to wear the string serving out really fast.

Look across the rail at the point where it ends at the trigger assembly release. If the rail is higher than the molded body of the CB, it will have sharp edges on it that the string drags across when fired

To fix this on your 180lb CB, remove the rail by taking out the four (4) screws that hold it in the stock. You will find two (2) in the front of the CB assembly near the hinges that the limbs attach to, and two (2) in the back by the trigger assembly. Be careful to make sure that you are removing only those four screws.

Next you will need to carefully pry the rail out of the molded stock front end first. Be careful not to damage anything near the rail, or on the scope mount or sights, and trigger assembly.

When you have the rail out, use a very fine metal file and smooth and shape the area where the string drags across the start of the rail, so it has a very short gradual smooth slope that starts at the level of or slightly below the molded body where the rail mounts.

Next, with some very light sandpaper, slightly remove the sharp edge of the length of both sides of the rail that the string glides against when firing bolts. Lightly sand and smooth the curve or slope that you did at the start of the rail by the trigger.

On the other end of the rail, slightly remove the sharp edge on both sides of the end of the rail.

Check your trigger assembly at the point wear the trigger holds the string at ready to fire. It has two sides. You can smooth the edge of this with an emery board or a very fine nail file. You will have to find something to hold the trigger in a half way down position to do this and be very careful not to let the file touch the other parts of the trigger area while doing this. You only need to round it a little bit to stop the string from having to drag across another sharp edge.

Clean of any residue from your work.

Now reinsert the rail into the slot carefully and make certain that the four holes line up so the screws will be easy to place back in.

This should really help lengthen the life of your strings.

Always wax your serving with string wax.

NEVER EVER dry fire your crossbow, because this can cause the limbs to crack and break.

There are some tricks you can use to improve the way your scope sighting is accurately also. I use very thin small washers to adjust the horizontal sighting on mine.

I can now shoot from 120 feet and more and get a very good placement of bolts in my target. Smoothing the edges and start of the rail will produce a wee bit more bolt speed.

I hope this information helps all of you with your "cheap" 180lb Draw Eagle crossbow. All of these tips may work on the 150lb too, but I don't have one of those so I am just guessing. If you have one, just check this guide against what you find on yours to see if this applies.