Hello  fellow bitcoiners. I want  to  divide and sent my BTC to 2 new addresses but do not want lose my BCH and BSV during this process.
Can I safely send BTC to my new addresses ( they are 2 addresses derived from my new seed  ) and when old BTC address will be empty send all BCH to newly generated BCH address and then send all BSV to my new BSV address.
I want to use these programs to make transfers:

BTC: https://github.com/spesmilo/electrum https://electrum.org/
BCH: https://github.com/Electron-Cash/Electron-Cash https://electroncash.org/
BSV: https://github.com/electrumsv/electrumsv https://electrumsv.io/

Reason why i want to do BTC transfer first is because i trust electrum wallet and BTC obviously is most valuable. I am not sure if I can divide BTC and sent it  to  2 different addresses or  I must send all BTC to new address first and only then divide it and send to 2 addresses.

Thanks in advance