Just talked to eldnl live on my iPod touch, to confirm his request.
And he sent me to explain because he says his English is poor, so..
Basically, there's is a preset fruit pattern set in osu! To determine what fruits fall at what time in a spinner. And what he is trying to imply is to implement a feature to control where in that preset pattern the spinner starts at. It doesn't seem too hard to implement, really.
It seems reasonable and fair, could develop a little more control into mapping in catch thr beat while keeping spinners random. With that, it's got my support.