Sounds reasonable.
In general with nimh higher charge rates will provide a little more punch, a little less run time. Just watch the heat, keep them below 125F or so.
Lower charge rate will increase run time slightly, and is a little easier on the batteries. Don’t go way low though, or the peak detection function of the charger won’t work properly, won’t shut off automatically. Usually anything below say around C/5 risks being an issue for proper peak detection.
Some will recommend a C/10 forming charge when new or after sitting for a while, mostly for transmitter & receiver batteries in my opinion, that needs to be controlled by time, usually 14~16 hours.
Oh, and welcome to the hobby, enjoy!