Personal history vs. SOP and GPA

[Owlie]

One program I'm applying to requires a statement of purpose and a personal history statement. I have a relatively low undergrad GPA (3.03--I was an idiot with no real focus in undergrad and bit off way more than I could chew with 2 degrees in 4 years). I took a year off,then enrolled in an MS program in my field. I have a 4.0. (I got my head screwed on properly and focused.) I know most of that belongs in the personal history statement, along with why I want a PhD in this particular field.

Should I mention the discrepancy in my personal statement? I'm not planning on dedicating that much space to it; perhaps I'll include a line or two along the lines of "Yes, I realize my undergrad transcripts are checkered, but I think my ability to do graduate-level work is much better illustrated by what I've done in this MS program than in undergrad." It does fit with the overall structure I'm trying to create in my SOP, but I wonder if it will hurt me to bring it up.