[rdunk]

Somewhat depends on whether you have a multi-burner grill, or a single burner grill, in my opinion. Not Rv'ing now, but were using a single burner Weber "Baby Q for 5 years, and are still using it, at home. The one pound bottles have worked great for us. During that time, I gave consideration (more than once) to getting a larger tank with hoses and connections, as some did. But, I just could never come up with sufficient reason to justify making the change.

The one pounders are just too simple and convenient to use, can be kept/stored about any place, and don't take up much of the "high-value storage space in the 5er - and that in itself is a critical element to consider.

I didn't even consider teeing in to the 5er's in-house line, because that would just be one more area in the 5er for us to just know that a problem (gas leak) could develop.