I tried a 2.4M dish on one and it moved it effortlessly from 0 elevation. But it could not cope with wind and would have been damaged eventually. I think a 1.8M dish is the absolute max for exposed areas.
I use one on a Precision 1.5M prime focus dish. I have had it for at least 10 years now and it still works perfectly. Its the best bit of sat equipment I have ever bought, lasted ages longer than some of my "cards"
One point though, when it comes out of the box you may need to adjust the mechanical E/W limits in the casing otherwise it will have a truncated arc. Its easy to do and instructions should be with the paperwork.
I have not heard of the "strengthened" version, what aspect of it is "strengthened" ?
Looks like that an additional plate that holds the Incline jack bolt to the base of the 1224, I think on or two bases have snapped as in the picture with the wind. Looks like that could be a fairly easy diy job though. Thanks Crossbones. BTW, I have a 1.8 Precision on a 1224, I think that would be my limit and certainly a Channel Master 1.8 would be really pushing it with the weight.