Yes. Parallel cell groups will always be balanced. Two caveats though:

1. Before connecting the pack power and balance leads in parallel, ensure that the overall voltages and cell voltages match closely. If they don't, there will be a high current on connection that could melt a solder joint or fuse the pins on a connector

2. Monitor the health of the pack as it ages. With the balance leads wired in parallel, a weak cell will pull down it's parallelled siblings which will manifest as a lower voltage in that group at lower DOD.

For both 1. and 2., you have an excellent tool in the 1420i to measure and monitor this - particularly with the computer interface.