With the 30% speed talent for killin stuff and the 10% from minor speed on boots, do you bother with SL gems? (pure F2P only, so no healing gem to consider)
You can make the SL gem with only 1 SL jewelcrafting, so there's no real reason to not have it. You only need around 50 SL ore to get enough +1 gems to max out speed. (400-500 ore if you want to shoot for +2 gems)
Base 160% movement speed is a world apart from 110%.
I only need exactly 25% movement speed. Whether through enchants or gems, maximizing damage is the priority.
When facing high-intensity enemies that need to be taken down quickly, I find those extra movement speed stats feel like a burden.
With the 49% move speed from gems I am still able to kill most packs without stopping so I see no reason to ever consider giving any of it up. Anything less feels like I am moving in sludge now after running with 49% for so long.