Replying to Inline?

alright, so this summer is here, im back home, and have shit to do besides working. thinkin about possibly pickin up inline. i figure im into the inline grinds and shit on skis, why not do it over summer? my question, with a solid skiing background, how long you think itll take me to pick it up and get decent at it? from those who have done similar. and dont tell me to skateboard or anything, cause i do that too. i dunno, just bored and tossin ideas around