Took 20 years off my windshield!!

[PaulE]

I tried the cerium oxide powder on my daily driver back in the early fall. I used the glass polishing pads like jakeru, but with my Porter Cable random orbital polisher. It isn't dual action, only random orbital. I did not spend a lot of time on the windshield, but it didn't look like I made much progress on the thousands of tiny specks in the glass from road grit. I don't have issues with marks from my wipers, just the specks since I do all my driving on highways and the daily driver has 93,000 miles already. So, here's my multi-part question-If I spend more time on the windshield, can I expect to make any improvement on the tiny specks? And if so, do I need to use a polisher that isn't a random orbital motion? And if the random orbital polisher should do the job, should it be at a higher or lower speed?