ya it is 5% - BUT - it is 5% of THEIR profit - not 5% of the gross. so it is really more like < 1%.
Millnic pays 6% lifetime. Most networks like CPAE, copeac etc do 5%. Don't waste your time referring to hydra.
I sent them a shitload of referrals last summer and was very very disappointed when i found out about their little ploy. Dirty play indeed imho.