You'd pick the '5' and the '4' in normal sweep picking fashion (in one smooth downstroke motion) the '7' would be hammered on to from the '4'...so...what you should get is this....
A---4-h-7-
E-5-------
and then your picking hand would carry on to the D string...
Does that make a little more sense than my first explaination?...I hope so...if not, again feel free to ask and perhaps there's someone out there who can explain it clearer than myself?.......
Don't worry too much about me, ignore me long enough and I'll go away.
