Initial testing budget to start/test a smartlink campaign, how much?

Hello guys, how much could it be an initial "wasting budget" to test/study a new campaign (for paid traffic) with a smartlink?

Any tips?

The "new guides" threads speaks about only direct offers (10x the payrate of the offer) as a "general rule", but what about the smartlinks?
I would like to do some testing, but I would also like to amortize the costs...

Up this

Anyone?

Try with small budget like $5/campaign