English vs Tamil Typing Mindset
Bilingual typists switch mental models when the layout changes. This page compares English and Tamil99 practice.
Letter-by-letter vs syllable thinking
English typing maps one key press to one Latin character in simple cases. Tamil99 maps keys to Tamil letters and modifiers; combinations create syllables. Expect a learning curve when alternating languages.
Scheduling practice
Alternate days (English Monday, Tamil Tuesday) or split sessions (first half English, second half Tamil) until both feel natural.