Full job with M's & X's at different tensions w/ 1-piece stringing?

Shangri La

Hall of Fame
I asked my local shop to string a full gut job with mains at 2 lbs higher. When I picked up the racquet, I noticed it was done 1-piece (I think, I saw two knots... dont know too much about stringing). I remember ordering a racquet from TW once asking for a straight job with m's/x's at different tensions and TW did it 2-piece. So my question is how is this supposed to be done and will one piece job affect playability or be bad for the frame? Btw the racquet is a MGPPro. Thanks.
 
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