Thanks for the replies.

The comment was more as a test case rather than actively trying to circumvent the rules.
As this is an engineering solution to limit connectivity I simply proposed another engineering solution to go around this.

Guess the conversation is a bit mute given that 2D have just come out with a tethering enabled unlimited plan. I expect others will follow.

It would still be worth proving the workaround it technically sound.

Thanks,
D