System.arraycopy(existingExtractors, 0, newExtractors, 0, existingExtractors.length);
            newExtractors[newExtractors.length - 1] = extractor;

            Arrays.sort(newExtractors, Comparator.comparingInt(Extractor::getWeight).reversed());

            extractorMap.put(key, newExtractors);
        } else {
            extractorMap.put(key, new Extractor[] { extractor });
        }

        List<ChannelInfo> channelsToRemove = channels.values()
                .stream()
                .filter(c -> !c.isPrimary()) // Never remove primary channel
                .sorted(Comparator.comparingInt(ChannelInfo::getScore)) // Remove lowest scoring first
                .limit(excessCount)
                .collect(ArrayList::new, (list, item) -> list.add(item), (list1, list2) -> list1.addAll(list2));

        
        if (isLargeTransfer(message)) {
            // For large transfers, prefer high-bandwidth channels
            return channels.stream()
                .max(Comparator.comparingInt(c -> c.getRemoteInterface().getLinkSpeed()))
                .orElseThrow();
        }
        
        if (isMetadataOperation(message)) {
            // For metadata operations, prefer low-latency channels