It should be safe now you have moved the TM's bag safely. Each item is 4 bytes in the RAM, hence why R3 is adding 4 times the limiter, then the next bag slot is stored after that limiter. So by extending the limiter by 0x3A items should not overwrite anything or am I missing something?
BTW, your English is fine. Actually some sentences are perfect. Most people here in Australia put slang in their sentences anyway, so we are used to guessing sentences. XD
I am Taの境界, that's my Chinese hacker name, so you can call me Jin or Tara too.
Yes I am a Chinese Pokemon hacker, but I speak English too, that's how I learn rom hacking.