main diff.. 6000 OPM for 7424, 6800 OPM for XP... which means the XP is faster and more efficient in paint correction... and of course... pag XP, newer model!
add ko lang mga idol...big difference is the power output! may issue kasi yung naunang version. in order to correct the issue, they made the motor more powerful. added feature na lang yung more opm, switch design, etc.