Lasso and Adding Filter Selection

Could we get improvements to the Lasso tool? When I try to Add/Subtract to a selection in my mesh models, it often does not work, so I have to rope select the same area over and over until it actually highlights what I select. I have also noticed that sometimes it will not filter out the smallest geometry. Has anyone encountered a similar issue?

Hello @apollo_mp
Are you using the Lasso tool for mesh? Because there is also other one for sparse point cloud.
Also, how big triangles has the mesh you want to add/subtract? If it is too big or if there are some hidden (like with usage of the clipping box), those won’t be selected.