I definitely recommend the opposite. I've found that machines often force me into a pattern of movement that may not jibe with my body mechanics or build.

I'd recommend doing the big 3, but starting off light. Focus on improving the movement. Record yourself, fix your form, develop awareness of your body position (for example - what does "butt tucked in" feel like?) and learn how to dump the bar if something goes wrong.

Above all: don't let your ego get in the way. There's a fine line between "just one more" and "one too many".