Appropriate IRS level?
I have; but I was far more interested in the spiffy skin than the tiny incremental increase in tap diameter. If you like the way it looks now, and you're happy with your tap size, there is no compelli...
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You're really working for the skin and a larger radius. I completed mine when we had that long gap between levels and money was in surplus. If you haven't finished it, put it on the back burner and concentrate more on leveling up and the perks leveling up brings ;)
