valve adjustment screws, anyone tried these ones from pelican?? Options

[jeremiah98125]

I didn't check out my valve adjustment screws last time I adjusted the valves and they seem a bit noisy to me.. (BTW how noisy should they be??) so I was going to pickup a new set of the adjuster screws to have on hand in case mine look worn the next time I go down there. Wondering if anyone has an opinion on these ones for my 1.7 from Pelican:

http://www.pelicanparts.com/cgi-bin/smart/...0-73)%2C%20Each

$4/ea seems like a good price, just wondering if anyone's tried them out before? they don't mention what brand they are..

[Java2570]

The 911 swivel foot adjusters are definitely not a drop in upgrade as you will (in addition to clearancing the rockers) need to check your valve geometry to make sure it's proper and if needed, cut custom length pushrods. Most foiks also add the solid
rocker spacers and heavy duty rocker studs at the time of the upgrade.

[Cap'n Krusty]

The 911 swivel foot adjusters are definitely not a drop in upgrade as you will (in addition to clearancing the rockers) need to check your valve geometry to make sure it's proper and if needed, cut custom length pushrods. Most foiks also add the solid
rocker spacers and heavy duty rocker studs at the time of the upgrade.

There's that word again. Please explain, in your own words, what makes installing 911 valve adjuster screws an "upgrade". Use valid arguments. Make me a believer. If you use the word "everybody", please list their names and qualifications. This is an open book test.

The Cap'n