In 1999, he scored 13 touchdowns on 118 touches. That's one TD every 9 touches.
In 2000, he scored 7 touchdowns on 158 touches. That's one TD every 23 touches.
In 2001, he scored 28 touchdowns on 229 touches. That one TD every 8 touches.
For his career that's 48 touchdowns on 505 touches. That one TD every 10.5 touches.

That's a phenomenal rate. Here are other great RBs that BYU has had, listed in career TD:Touches ratio:

Ronney Jenkins:
In 1996, he scored 14 touchdowns on 142 touches. That's one TD every 10 touches.
In 1998, he scored 15 touchdowns on 286 touches. That's one TD every 19 touches.
For his career that's 29 touchdowns on 428 touches. That one TD every 14.8 touches.

Taysom Hill:
In 2012, he scored 4 touchdowns on 55 touches. That's one TD every 14 touches.
In 2013, he scored 10 touchdowns on 246 touches. That's one TD every 25 touches.
In 2014, he scored 8 touchdowns on 87 touches. That one TD every 11 touches.
In 2015, he scored 2 touchdowns on 9 touches. That one TD every 4.5 touches.
For his career that's 24 touchdowns on 397 touches. That one TD every 16.5 touches.

Jamal Willis:
In 1991, he scored 8 touchdowns on 97 touches. That's one TD every 12 touches.
In 1992, he scored 11 touchdowns on 212 touches. That's one TD every 19 touches.
In 1993, he scored 7 touchdowns on 107 touches. That one TD every 15 touches.
In 1994, he scored 14 touchdowns on 237 touches. That one TD every 17 touches.
For his career that's 40 touchdowns on 653 touches. That one TD every 16.3 touches.

Harvey Unga:
In 2007, he scored 17 touchdowns on 288 touches. That's one TD every 17 touches.
In 2008, he scored 15 touchdowns on 282 touches. That's one TD every 19 touches.
In 2009, he scored 12 touchdowns on 224 touches. That one TD every 19 touches.
For his career that's 44 touchdowns on 794 touches. That one TD every 18.1 touches.

Curtis Brown:
In 2002, he scored 4 touchdowns on 87 touches. That's one TD every 22 touches.
In 2004, he scored 6 touchdowns on 185 touches. That's one TD every 31 touches.
In 2005, he scored 16 touchdowns on 263 touches. That one TD every 16 touches.
In 2006, he scored 10 touchdowns on 263 touches. That one TD every 26 touches.
For his career that's 36 touchdowns on 798 touches. That one TD every 21.2 touches.

Jamaal Williams:
In 2012, he scored 13 touchdowns on 193 touches. That's one TD every 15 touches.
In 2013, he scored 7 touchdowns on 235 touches. That's one TD every 34 touches.
In 2014, he scored 4 touchdowns on 117 touches. That one TD every 29 touches.
For his career that's 24 touchdowns on 545 touches. That one TD every 22.7 touches.

Lakei Heimuli:
In 1983, he scored 0 touchdowns on 30 touches. That's no TDs.
In 1984, he scored 10 touchdowns on 189 touches. That's one TD every 19 touches.
In 1985, he scored 14 touchdowns on 254 touches. That one TD every 18 touches.
In 1986, he scored 8 touchdowns on 271 touches. That one TD every 34 touches.
For his career that's 32 touchdowns on 744 touches. That one TD every 23.3 touches.