Ignore the Paulh post... Unless your a genetics wizard yourself, you won't get it.. This is why we have people advertising things like het pastels on craigslist when there is no such thing. It gives the hobby a bad name.
Lesser IS co dom. Just leave it at that.

When bred to a normal, you will only get normal babies and lessers. Period. No hets at all.

To make things simple, we prefer to reserve the term "het" for recessive genes. Such as pied and albino.