According to code for as far back as I can find...tie-down compensation is required for over 700fpm. I've also heard of Armor
issues with their design...here is a code reference regarding comp tie-down's...
2.21.4.2 Tie-Down Compensation Means. For rated speeds greater than 3.5 m/s (700 ft/min), a tie-down compensation means shall be provided and fastened to the building structure to limit the jump of the car or counterweight as a result of car or counterweight buffer engagement or safety application. The compensation means, connection, building structural members, and fastenings shall be capable of withstanding the maximum forces to which they are subjected due to car or counterweight buffer engagement or safety application with a factor of safety of not less than 2.5.