Sorry to tell you, but if your really serious about your SEO, and really want your Tier1 to stick and benefit you, doing it by hand and using quality articles, not spun crap is the only way to go. Its a little more work, but the long term benefits can be very good.
100% have to disagree.
The term "spun crap" is like saying "bad asian driver". Its a massive generalization.
And apparently, there are a lot of people on here who have never read properly spun articles.
I think the reason for this is that you don't NOTICE articles when they're properly spun.
The only time you notice spun content is when its done the wrong way.
I use spun content right on my site, and have sites that have been ranking in the top 3 for years.
With that said, it can take me anywhere from 30-50 hours just to write 1 spintax.
And my spintax's are divided into 10 different smaller spintaxs.
I use these 10 smaller spintaxs to do most my tier 1 content, and I will also use them for a portion
of the site itself (for less competitive terms).
Like I said, I have enough sites ranking for long enough time to know that the strategy has IMMENSE
benefits when used properly.
-SB