Hang boarding can improve finger strength and grip endurance, which are important factors in climbing performance. However, it is not a replacement for climbing, as climbing involves a range of skills including footwork, balance, technique, and mental focus.

To become a better climber, it is essential to practice climbing regularly and supplement with exercises such as hang boarding. By incorporating both climbing and hang boarding into your training, you can develop a well-rounded set of skills that will help you climb more efficiently and effectively.

To stop your toes from hurting in climbing shoes, you can try the following tips:

1. Make sure you're wearing the right size of climbing shoes.
2. Consider getting shoes with a wider toe box or stretch your existing shoes to make more room for your toes.
3. Take breaks and remove your shoes between climbs to allow your toes to rest.
4. Gradually build up the amount of time you spend in your shoes to allow your feet to adjust.
5. Try wearing thinner socks or no socks at all to reduce friction and pressure on your toes.
6. Use foot tape or pads to cushion and protect your toes from rubbing and pressure.