I have been reading that the compact springs could cause failures or problems over time. I ordered the upgraded springs from Gunsprings.com. I cannot fit 9 rounds, 8 is little too tight. I am back to factory springs again, is there something I am missing? Any advice? Different source of springs?

Thanks.

You should not be trying to fit more than 8 rounds in any Compact .45 mag, they are only designed for 8.  Assuming that is a typo, the Wolff springs do make it difficult to fully load up the 8 rounds at first.  What a lot of people do is to force in the 8 rounds if they will go and let them set for a week or two.  Or, if you can only get in 7, then put in seven and let it sit for a week or so then get the 8th one in there.  
The HK springs will not cause a malfunction per se.  They sometimes get week and the first sign of that is that the slide does not lock back after the last shot.  I have been shooting two mags for 4 years and they still have the factory springs in them, but then I download by one round.  If that has anything to do with them not failing or not I don't know, but it is something I do anyway.  I feel that 8 plus 7 in the spare are about 15 more than I will ever need anyway.  Since the average "gun fight" is over in 3 rounds, I am not concerned in the least if I am carrying 9 or 8 total in the pistol.

Yes that was a typo re: 9 rounds

I have read it a few times in the last couple of months on the internet so I ordered the springs. The fit was so tight I thought something was wrong. I think I will keep the springs around but stay oem for now. Thanks!