If it is a 4:1 ratio, then you could get away with an entry level reactive that has a low differential or even a layout with the pin under the fingers to help control the backend. Higher ball speeds could even do something like an IQ Tour Solid. I know urethane is going to be the popular answer but not everyone can use them. As an example; as much as they use urethane on tour, I cant recall too many times if at all Francois Lavoie has used a Pitch Black that I have seen because his rev rate is so low. Same with Norm Duke.
As far as transition; if the gutter starts to break down, the move is going to be a big one similar to what we saw from Belmonte a couple weeks ago. The middle is not going to play because there wont be much hold. So you would have to really open the angles up (move 7-10 boards with your feet and a full arrow with your eyes, then adjust from that). I bowled a 8 game sweeper years ago on the Middle of the Road pattern which I believe at the time was 4.5:1 ratio at 38 feet. Started with an Ebonite Tornado with a typical 5 inch pin to PAP layout and started playing around second arrow with my angles closed up. In the last game, I was still using the Tornado but amped up my ball speed and was playing around 20 at the arrows with 8-10 breakpoint. I ended up finishing second and averaged 225 for those 8 games.