How do I choose a running shoe for long runs versus speed?

Reviewers generally point long-run buyers toward higher-stack, max-cushion shoes (the ASICS Gel-Nimbus and Brooks Ghost Max class) for shock absorption over distance, while lighter, bouncier shoes are favored for tempo work. Several reviewers note max-cushion shoes can feel heavy or 'bottom-heavy,' so if you do both, many runners keep two pairs.