Similar to self-study mode, a early start is always beneficial in the case of coaching classes as well. It is advisable to start coaching for the medical entrances immediately after appearing in Class X and without waiting for the Class X results. Most of the good students know how they have performed in the Board Papers so they should not wait for the result and start preparations immediately. Nowadays, serious students who are certain about taking Biology in Class XI even start their preparation for NEET in Class IX or X. It gives them enough time to strengthen their basics and they take one step forward even before their counterparts start their preparations in Class XI.