surface noise and cartridge/ phono pre questions


Ok, here it goes. I'm very green to analog but thanks to Agon, I have so far been lead in the right direction. I'll cut the bull and get to it.
I'm currently using a Music Hall 5.1se, AT140LC cart, Musical Suroundings Nova Phonomena phono pre with a DIY phono interconnect. I'm loading the cart at 50k, gain at 40db, going into a AE-3 pre. I've made many adjustments to VTA (SRA), VTF....etc. currently I'm at approx -2degrees on VTA and 1.46g on VTF. I also tried a Shure V15 IV w/ ed saunders stylus, never could get it to sound right to me.
I'm very happy with the sound now and I think it's really close to the proper set up. I have Alison Krauss "So Long So Wrong" last 2 tracks of side 2 sounding sweet!!! The problem....I seam to be getting surface noise and pops with recordings that I would think should be better.
My main question. I tried using a lower cart loading, (2k) obviously this is to low, sounds super clean, black and quiet. Again, obviously, the highs totally diminish. Any suggestions on a direction I should go to obtain this sort of quietness without losing my high end?
I'm very new to this and learning daily but if I'm chasing my tail with my phono pre, cart, tonearm compatibilty, I'm open for suggestions. The more I read on here, it's sounding like this could be the difference in a really good phono pre. I really like the sound of the AT140 and feel that it is a good match for my humble tonearm and system. I'm curious on what you guys think and suggest.
If this is not enough info, I'll try to give more.
Just a quick note, I just hooked up the AE-3 pre last night and It's really something else for such an inexpensive investment. Great match for my SET45.
1gear
There is a very nice phono stage that is listed on the 'Gon. You should be able to pick it up for a number that is very close to your stated budget and for that price it is about as high a price/performance ratio as you're likely to find. I owned one and Dougdeacon and I and several others A/B'd it w his Alaap and it came held its own against some very very good stand along phono stages. It cannot quite keep up w an Alaap but its pretty darn close. Minimalist design, very Japanese, so not much techno-wow factor, but at teh listed price I think its a steal. No relation to seller, but he/she can p.m. me to get my address for the commission check ;-)

The only other thing I'll add to Doug's comments is that many of the current crop of vinyl issues/re-issues seem to be quite noisy w poor quality control in terms of clicks and pops and warps, unfortunately.
I agree with Doug's suggestions about the VP1 16.5 and AIVS fluids. Those should get the pops and clicks under control if you devote the necessary time to the cleaning regimen.

I have a Pass Labs Xono phono stage which can be found used for under $1800. It has something like 200 different load settings and is extremely quiet with a separate power supply. It is built to last, sounds excellent and IMO is an excellent value used. I have not heard a better SS phono for the price, though my experience is fairly limited.

I would also suggest trying some kind of vibration isolation platform under the turntable. You could find a used Towhshend Seismic Sink for under $300 and you would be astonished at how effective it is.

After proper cleaning and cartridge alignment, I have discovered that good isolation is critical to getting the most out of an analog front end.

Congratulations and it sounds as though you have the analog bug and are on the right track. Keep enjoying, earning and asking questions.
Have you tried the MINT cleaner? I got a sample when I got his alignment jig. I use it and then suck it off with a Nitty Gritty....works well.
"First, attempting to address vinyl clicks and pops by adjusting cartridge loading (or any other setup parameter) is fundamentally unsound."

If improper loading results in a high frequency resonance (for example loading a MM cart. with too much capacitance) then yes it can highlight surface noise through "ringing". Ultrasonic impulses will excite this resonance and the ringing will shift this noise down in frequency to that of the resonance. If this resonance is in the audible range then it will make a record sound more noisy. You might want to measure the capacitance of you phono cables and read Jim Hagerman"s paper on cart. loading for some guidance.