http://developer.yahoo.com/performance/rules.html#flush

Implementing my upcoming site I have gone through this very helpful set of
guidelines and found myself stack at the point of flushing which I feel,
although is promising considering enhanced user experience, contradicts with
earlier set rules of:
1. compression
2. content length

These 2 issues among others are also mentioned here:
http://stackoverflow.com/questions/352759/php-flush-how-often-and-best-practises\
/352787

So I am now wondering if someone have been able to achieve implementing the rule
of early flushing and still maintained compression, as for content length I
don't see how that can ever be achieved so lets forget that part. If so please
let me know how.

If not, I do believe I make a better choice to prefer compression above
flushing, or any data that might shade light on this issue?

Thanks