The other benefits of a long-enough stem (or a short-enough top tube) are that you can get more weight over the front wheel when descending, which makes high speed more stable, and you can get your weight further forward when standing on climbs. These things may or may not be important to you, depending on how you climb and how fast you descend.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72