The X93 has improved massively over the last few years, so credit where its due. It's never going to divert all around the houses to pick up a few more passengers, all they can do really is make sure its reliable and the capacity is there. Passengers from Middlesbrough can easily make their own connection from Teesside into the bus station to get the X93, they just need to be confident they're able to get a seat for the long journey ahead.

As for extended the X4/4 to Scarborough, a similar thing was tried with the old X56 being extended there, but wasnt a great success. There's a lot to be said for if it isnt fixed, dont break it.

My own personal suggestion would be to consider a new route from Whitby-Scarborough-Filey-Bridlington. Run as an express service, just a few runs in the summer only perhaps to see how it goes. Use Whitby drivers so that driving hours is not a problem. It would take some pressure off the X93 for those going to Scarborough, but also open up some new revenue down the coast for day trippers. A non-stop or very limited stop from Scarborough onwards would surely attract passengers from the local Easy Yorkshire services too?