I have a question about the osu!next sliders style, if I can choose the osu! stable (fallback) slider style which is the one you have a hitcircle and end-hitcircle, and also when you start a slider the first hitcircle don't disappear
You mean snaking in and snaking out sliders? These are both toggleable options now in lazer. Don't worry about it now though, it's still under heavy developmentnope.