The feeding of bulk solids from the slotted outlet of plane symmetric mass flow hoppers can lead to significant flow problems if the bulk solid is subjected to excessive compaction during the feeding process. These problems usually manifest themselves when trying to feed, with traditional methods, bulk solids that exhibit elastic springback characteristics. Feeding is especially difficult if the feed direction is 'along the slot'. Bulk solids that exhibit elastic springback characteristics include waste wood chips and flaky materials, especially if they are rather compressible. Successful feeding of such bulk solids along the slot of plane symmetric hoppers often requires some non conventional feeding techniques, such as 'outrigger screws' and non consolidating belt feeders. In less severe cases well interfaced feeders may suffice. This paper discusses techniques to minimise the consolidation of the bulk solid when feeding along the slot of wedge hoppers. In particular, feeding characteristics of a non consolidating belt feeder are considered.