I don't think I'll need a sub with the M60s, but I certainly want one!

I'd like to ask you about the HSU. I've pretty much narrowed it down to the VTF-2 or the SVS PB-1D. Now the HSU is both cheaper and smaller. I've read some postings that suggest the HSU can go lower and may be a better musical sub. I've also read that it tends to do some port huffing during serious home theater workouts. This could have been just some SVS owners bashing the competition. Have you experienced any port noise?