First of all it becomes adamantly clear that Icy Veins is wrong. Why would I take Cone of Cold's glyph and use cone of cold when I could use Splitting Ice in its place that is multiple times more important in most cases, and, it's often hard to impossible to be at melee range on boss?
Then I feel something is missing in what I'm doing. I basically burn my cooldowns and minicooldowns on ads, then I start doing Blizzard. When I do get a Frozen Orb again, I use it and repeat. I'm not sure how many ads should be there for Ice Lance to be a benefit(glyphed).
Then again, I might again resort to Simcraft. Most websites that don't back their claims with simulations tend to be crap.