Did you switch engines to 25 2-strokes, or just reverse the digits?

(I'm curious to see how you like the 52s if that is what you end up using, because I have a Twinstar and have not decided which engines to use yet. I have onlyoneMagnum 52 and one OS 52, but have four Magnum61s. If you find the Magnum 52 is too much power then the 61s would be, too; and it still wouldn't make sense to buy another Magnum 52or OS 52, either. I also have 2 MDS 40s, but these would offer similar power, as well.)