I was determined to get all par time / scores on mcc without help.
Finally achieved this yesterday, and it felt sooooo good 
Even though I managed 683/700 without helping hands, I think the rest is not possible for me, last time I had a crack at lasso, there was an update and it forced me to start over :-/
Most excellent! 
Very impressive! I completed almost all of the achievements myself but did a select few of the timed ones with my brother, Gravemind being the one that stands out the most looking back. As for the LASO ones we both did all of those together. Sure, I could have completed most of them on my own without much difficulty but it was much less of a slog with someone else there to help. I wish you luck completing the final 17 that you need!