The 26 and 28 are more powerful than the 24, and less than a 34. The 28 has a rubber butt plate, the 26 plain wood. A couple of guys on the yellow forum own them.
Is it like the old series 27/35/45 or the new 24/34/36/45? That is, does the 26/28 use the same powerplant as the new 34 or the older 27? Confusing, ain't it?