Find out what the professionals know!
Many of the old dependable standards of everything are no longer your grandfather’s standards.
Off the shelf products have been sold to large companies and then the quality has been reduced to meet marketing and profit demands.
Tires, batteries, roofing, furniture, ….. everything has been manufactured under specifications by the seller, not the original designer who designed and engineered to last and do what it was supposed to do!
Many of these products still have the original formulas and quality out there, but you have to search for it and don’t expect the retail price to be competitive!
Ask professionals who their suppliers are and what product you should use. If they will tell you!
I’m just sayin’, question the quality of everything and with your computer, ask the right questions to narrow everything down to the best you can afford!
It’s probably still out there, just not on the shelf two blocks away! rdd