Reducing Background Noise On Records

I spray the fluid on then immediately use the brush while rotating the record 5 times.  I apply moderate pressure on dirtier records.  Then I spray on distilled water and use a clean brush again rotating the record 5 times.  I do this twice. 

FYI, my cleaning fluid consists of 75% isopropyl alcohol 91% pure) and 25% distilled water, with a few drops of Fawn dishwasher detergent and Rinse Away rinsing agent. 

 Sorry, Dawn dishwasher detergent. 

I think part of the answer to your question hinges on your definition of  "noise", but here is an additional 2 cents...

I got my ultrasonic record cleaner today and it is a bit of a revelation.  The majority of my records are in good to excellent shape and had been cleaned with a Nitty Gritty at least once, stored in rice paper sleeves, non smoking household etc.

I've just cleaned and played a few older, well-played records and the difference is pretty startling.  It's just all around better - quieter, more detailed, etc.

I opted for one of the cheaper solutions
http://www.cleanervinyl.com/ and you can find other similar solutions or DIY.

I'm sold on ultrasonic cleaning and will be busy cleaning records for the foreseeable future. The other great thing about this new cleaner, is that I'm now inspired to go used record shopping knowing that I have a really good way to clean up the records.

PS - My front end is of reasonable quality, but not crazy
Rega P25 with some slight mods and a Shelter 901.

The Ortofon 2M Blue is the weak spot for sure. It has elliptical stylus and high 5.5 mV output.
Flat mids, dull highs and gloomy base from what I experienced. If you want to stick with MM- try good 1000 or 2000 series GoldRing. You will see most of problems will go away.
 Ultimately go to MC.
If need any cartridges- I can help for sure.
Greg

@geoffkait 
If you want to destroy your MC cartridge just keep following geofkait's advice.