I use Holland lugs on all my rifles builds. The thicker lugs are supposed to flex less under recoil but that is debatable unless the rifle is a super magnum, the taper makes it easier to remove the action after glass bedding from the stock. If you are building a rifle the 30.00 dollar spent for a custom lug is well worth it, especially if you don't have a surface grinder available. Pin only if you plan on building a switch barrel rifle.
