Hi John.
Hang around here - it's a great site with really decent people.
I decect a bit if excitement in your post. I felt the same when I finally got my scope. Have been interested in astronomy since a teenager and got my first real scope recently. At 47! It was brilliant to finally see things thru your own gear.
Now I fear for the contents of your wallet...
Are the lines in your 4mm crosshairs by any chance? And you can work out the magnification of your 4mm EP in that scope using any of the online eyepiece calculators. I think there,s one on IIS in the resources section. Tou might find that with the 60mm scope, 4mm EP, & 3x Barlow it's just too much magnification.
Cheers & Merry Christmas.