Jerry, the tandem is just an inline dual resorvair MC, and uses an proportion valve instead of a bias bar to balance out the rear brakes (so that you don't get overamplification). I do not think the tandem MC provides more force output over the dual MC. I would either go for a manual setup or a Hydraboost setup, but you'll need a new MC either way. A small bore MC for manual brakes, and a the biggest bore MC you can find for a Hydraboost. I've ran Hydraboost, and it's great, but it adds a lot of stuff to the engine bay in form of hydraulic lines, and preferebly a cooler.