Dude, I have an At 4033 too! If you wanna hear a clip of the vocals, go to:
www.members.aol.com/racorndog/racorndog
and download "pearly gates". This is a fine example where I took care of some sylibance issues and I'm gonna tell you exactly how I got that clean of a sound with that mic.
First, I'm using a popper-stopper on it. I'm also using the roll-off switch on the mic. Why? This kinda sounds like a bad idea, but let me explain. I'm running the mic through
a dbx 160a compressor at a 2:1 ratio and about 8-10 db of compression at the most. The reason why I'm using the roll-off switch is because despite the popper-stopper, if a singer goes into a loud "p" sound, this will cause the compressor to compress the whole signal, not just the "p" sound-so it will bring the level of the whole sound down because of that vicious, loud "p" pop. The less frequencies you are compressing, the easier it is on the compressor and better it sounds. After recording, i'll add that loss of bottom end.
At mixdown, i'm running the vox through a 31-band. In my experience, these have been more reliable than de-essers. I boosted frequencies from 12-20khz, because that At4033 has a good drop-off around there and the mic has a good increase right about where the silibance occurs. This is right around 6-8khz. I'll put a slight cut on these frequencies.
Also, i'm not a huge advocate on using different micing angles on vocals for home recordings. The reason is that most of these condensers are relatively loud with respect to the noise of the mic, so I always get that popper-stopper close as possible to the mic and the singer close as possible to the popper-stopper.