Engraving logos or text with the MPX-80 and EGX-350 models generally gives you a more prominent engraving. This is mainly due to their ability to be able to engrave the outlines with straight solid lines.
The MPX-80 allows you to fill in the logo/text with either 'island lines' or 'dots', but the EGX-350 will just offer you the line fill options due to its 'drag' method of engraving instead of 'impact' engraving.
Example of vector line engraving using the MPX-80...