Cut-to-length systems based on a single-grip harvester and a forwarder are generally well suited to the protection of advance regeneration. However, regeneration levels may still sometimes fall below what is desired. In the first part of this study, FERIC investigated the factors that affect the survival of fir seedlings. Seedlings beneath piled wood sustained approximately twice as much damage as those located in the felling zone, whereas all seedlings located in extraction trails or under slash piles were deemed to be of unsatisfactory quality. In the second part of this study, FERIC proposed two variations on the usual work methods and studies the results in terms of protection of the regeneration. The method that concentrated slash and wood piles increased the level of protection afforded to the regeneration, without any major effect on harvesting costs. Dispersal of slash over the cutover did not provide satisfactory protection of regeneration, but might nonetheless improve a site's plantability.