Sorry I wrote that a little confusing. What I meant was that if you have a bunch of hard inquiries already, it may not impact you that much. In my example, I was saying if you already had, say, 10 inquiries, then 1 more probably wouldn't hurt you too bad in terms of points. If you had 0 to start with (which is unlikely since you're shopping for a mortgage) then add 1 inq, you might see a relatively larger drop in score. I have about 10 total inq on my TU right now, of which 5 count (< 1yr), and last time I applied which was about 3 weeks ago, I saw 0 point impact.
You can google that "Backdoor TU" and you will find some guidance on how to get your report right away directly from the bureau, which would tell you if they ran a hard on you or not. I guess that point is moot since you confirmed you saw it using a different credit puller service.
I think you'll be fine. 6pts is a lot of room when it comes to inquiries, in my opinion, but keep us updated on what it turns out to be.
I had 2 inq on TU before the lender and the credit union pulls. Both from June 2011.