Really? Hmm. How many posts do you list on the front page and how long are they on avg? I just think that doing full posts (that avg 300+ words) on the front page can get bulky. Think it is better to have more posts on front page (excerpts) or less (full page)?
I use to have the whole post in my blogs on the front page, but like you said, it got too confusing, I now use a teaser.
I am currently re-evaluating how I will do it. Theproblem I have, is that I try to post at least three times daily. It would be easy for a reader to miss out on posts by limitig the number of posts I run on the front page.I currently run 15 posts on the main page. I also had a problem with my ads. At the rate I was posting, I would show PSA's a lot becasue posts would not get crawled until they were off the main page. Thinking about it right now, I am going to drop it to 6 posts and see what happens then.
If you do a few posts a day, I would think excerpts are the best way to go. You can show off many posts in a highly usable fashion. I think if a page scrolls too far down, the user gets an overwhelming feeling and is likely to leave. You need to feed people in bit sized portions. Having a section on the front page for the posts you think are the cream of the crop is a good move too.
Depends on your blog software. I use WordPress, the best in my opinion. You just call up the excerpt instead of the story. Simple. I have used others and they generally required a slight coding change. Best to check the support site for your software. If you use WP, just call: the_excerpt(); instead of the content.
Instead of this, I would say use more tag from the editor. Put the more tag from where you want your post to be cut-off on main page. It will automatically add a read more link.