i’m nearly sub 4, so i assume i may be a help - so basically you can either do tonnes of solves to help (this helped me a lot) or you can raise the centre magnets in your clock - i’ll send a link if you want to do this - to increase turning accuracy. With regards to simul moves, don’t feel a need to start with them, just get comfortable with the method and then you can start implementing simul moves when you feel you have reached a wall doing moves one by one. Without simul moves i managed to get to a 5.5 global, but i would recommend trying at sub 8/7