No worries
Previously this is what I had said about their fleet: "The 737-700 though make up a huge part of their fleet though. When I look at it they only have active 69 MAX8 planes, 207 active 737-800 but 444 active 737-700."
***That information was current as of when I posted it which was Wednesday*** A notation this was before the May flights got changed so I know a flight or two were eliminated from my May flights. The amount of 737-800s and MAX8 in the quote today has already taken into consideration the reduced flights for those dates and is going off the current schedule as it stands today for the dates I mentioned.
They will be flying the 737-700 regardless the most because it makes up the majority of their fleet (if using the figures above it's almost 62% is 737-700). And flight times and routes and airports and all sorts of things are taken into consideration.
FWIW I checked the same May dates for BWI to MCO and May 4th had 7 segments using 737-800 and May 15th back to BWI also had 7 segments using the 737-800. These count connections. I know you're talking about April though.