I've sold many of the 1G TOTO Drakes II's. They work great.
The Drake II's both the 1G and the 1.28 are one of my favorites. With TOTO anything on the MaP testing that is 500 grams or more has been working very well for my customers and for me.
I can't say the same for some of the other brands. I just talked to a customer of mine that fell for the 1,000 gram rating on the one-piece Champion toilets by American Standard. I had sold him TOTO before and then he read Consumer Reports and decided to go with their pick instead of mine. After two years he called me up to remove the three American Standard Champion one-piece toilets and replace them with TOTO Ultramax II's. Really similar to the two piece Drake models. He loves the TOTO products.
I gave one of his old Champions to my neighbor across the street. My neighbor wonders why I always have these slightly used Champion toilets to give him. I remove more of them than I've ever sold. The Champion has such a high flush valve that it's very hard to adjust it to get a good flush on the one-piece. It has the 1,000 rating, but does not work as well as a TOTO with the 800 rating.
One of the toilets on the Map was a rating of 325 grams, the Ultimate, which granted was tested before they went to the slippery plastic wrapped paste. That rating had been with paste, which likes to stick. I installed eight of those in the church I go to and they have been fantastic. No more calls to plunge anymore like I had with the old 1980's American Standard Cadets. I would say that anything TOTO with 500 grams are more is very good. They are more "real world" and not tweaked just to pass MaP.
