[Buying]  Buying Ragnaruk Heavy Survive or just Heavy

Im looking to buy Ragnaruk Heavy Survive or just the part Heavy for when my Burst Dash Set arrives
Ragnaruk Heavy Survive is actually on sale and probably being liquidated at the moment on HobbyLinkJapan: http://hlj.com/product/TKT83329/Sci

But you should consider purchasing Valkyrie Spread Survive instead, to at least gain more Valkyrie since its teeth wear down hah. It is also on sale: http://hlj.com/product/TKT84016/Sci

I should however remind you that Survive is not really top-tier anymore when Revolve and Gyro already exist.