I find myself to have to keep refreshing every once in awhile. It helps get rid of the lag. I would say that the jump response and the lag are tied in together. Awesome game just the lag is way to bad and makes it really hard to beat the game.
If you are going to do dual gems i only do pure its better. but for dual the best is yellow purple. cause the purple is extremely fast and armor reducing while the yellow is triple damage and long range.
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