Channel-bonding in 2.4GHz

[ndoudna]

I understand it's best practice to disable channel-bonding in the 2.4GHz band, but supposing you wanted to enable it anyway (you had a protected environment or whatever).

My HP laptop's wireless adapter driver has a configurable setting for "20Mhz" or "Auto" in the 2.4 band, and it defaults to "20MHz" -- so, my client won't channel-bond in 2.4.  How does that work then with an AP that's channel-bonded in the 2.4GHz band?   Does my 20MHz client just use half the range?

The default for my laptop's 5GHz wireless property is "Auto", so I guess there's some sort of negotiation to figure out if there's a bonded channel?

Anyway, clients defaulting to 20MHz seems like another argument against channel-bonding in 2.4GHz, as if you needed a stronger one than cramming the whole 2.4 range.

Any experiences?

thanks,

noemi