Welcome to Bladeforums.com orologio!!!
Please take a moment or two to visit our benefactors, Buck Knives
http://www.buckknives.com/ and One Stop Knife Shop
http://www.onestopknifeshop.com/ (Kevin owns this Forum!)
Buck has a very interesting Virtual Plant Tour at
http://www.buckknives.com/plant_tour.php , a guide to Tang Stamp Codes at
http://www.buckknives.com/collectors_vintage.php , and there is a brief introduction to the Buck Collectors Club at
http://www.buckknives.com/collectors_club.php . The Buck Collectors Club commissions special and unique versions of Buck knives for member sales only, so you might want to consider joining to gain access to some of these truly awesome knives!!!
Now, to get back to your question...
Buck knives are really a compromise. Everyone has a different opinion on what is "right", whether it is shape, size, color, blade shape or steel composition, etc. So all Buck knives are based on the lowest common denominator, in your case (blade steel) 420HC is the best compromise. Buck builds for the masses, not individuals.
Having said that, there are variations available from the Buck Custom Shoppe (link on their web page). The BCCI also commissions selected features to incorporate into their Annual Knives, Fund Raiser knives, and Special Editions. Buck itself also issues Special Editions from time to time. It is quite possible that Buck has made (or will make) your favorite knife in your favorite configuration...
Hope this helps!
[size=-2](Note: I am not affiliated with
Buck Knives or
OneStopKnifeShop and received no compensation for this endorsement)[/size]