One temporarily downside of the snorkel was the constantly releasing of the pressure valve under load. That had to be fixed. I could have just bought a stronger, adjustable valve, but it was way more fun to build my own adjuster. The most important part is to find the right strength of coil spring. Canadian Tire had a good collection and after a few tries I found the perfect fit. The rest are just scrap of aluminum and stainless steel hardware. All in all just a few bucks.
It works great and the annoying sound of the pressure valve under load is gone till the pressure hits about 18psi. I usually try to stay blow 15psi, though.