A one ounce spinner weight for the first flight is a good idea. Mine has numerous modifications that added weight behind the CG. Even with a ST .60 for power, it needs 2 ounces of nose weight.
I have flown 3 Scores belonging to other club members. All were powered with an LA .46 and built stock or nearly so. They flew well with no extra nose weight, but all used the stock E-3030 OS muffler which weights about 3 ounces.
It's usually better to test fly a little on the nose heavy side. Once you get the "feel" of the plane, you may want to remove some or all of the extra nose weight.
The Score does have a large stab and elevator. I've read where large tail surfaces can carry more weight. If its balanced right on target you might be OK, but why take the chance. Regards, EWP