This is a subject i have been contemplating on for over 2 years. I know kens r has been boosted for at least 3 years now and im sure it still runs strong. Robert's is pretty nasty too. He still owes me a run. I on the other hand went baby js route and has been fun for two years now and still no problem, yet. Of course i never dog my **** and i have only been threw maybe 4 full bottles but, it is very fun to say the least. Im sure once everything gets the way i want it to it will go full build plus boost but i have sometime to have the best setup for when i do go boost. Some advice would be to think it through and dont rush it and it is all in the tune like ken said.