How do you adjust to hitting your target while making the underhand cast as far as hitting right or left.Do you move your rod tip to adjust.Any advice will be helpful. Thank you

yes, moving you rod and thumb control over your line are keys to making accurate casts.

The above and driveway practice.

If your neighbors don't think your crazy then you haven't put enough time in practicing in the yard!

Usually you need to release earlier than you do with an overhand cast.