Why same-suit is so different
Alternating-color or any-suit building allows you to temporarily park cards regardless of suit. Same-suit strips that flexibility: a red 7 can only go on a red 8 of the same suit. This means you must track four suit pipelines simultaneously rather than two color streams.
Common mistake
Players spend both redeals early trying to force moves, then find themselves stuck in the endgame without the recycling safety net. Treat the first redeal as a last resort and the second as an emergency only.