Up till now, all the swipes I have covered involve stories updated for either Superboy or Superman. But here's one where a Superboy tale was converted into a problem for his adult counterpart:
In both stories, a circus advertising itself as being from another world sets up on the outskirts of town (Smallville and Metropolis, respectively). Both circuses require coins instead of bills:
The updated version does have one of my favorite goofy Silver Age panels:
In each case, Kal El prevents a disaster from occurring, resulting in a surprising offer:
But the circus owner won't take no for an answer, and sics some of his monsters against the Lad/Man of Steel. At first he is able to defeat them, but:
Neither beast can beat Supes, but he cannot beat them either. It looks like a stalemate, but the circus owner threatens to loose the monster on the nearby town. So Superboy/Superman agree to join the circus reluctantly, but warn that they will leave if they can figure out away to defeat their nemesis. Which they shortly do:
Incidentally, these stories fit Weisinger's seven year pattern nearly precisely with Adventure #198 coming out in March of 1954, while Superman #145 carried a cover date of May 1961.