It's still not clear why you need to be type rated on a piston machine nor what you'd use the machine for. As a biker and owner of both 22s and 44s (and using the car analogy), the 22 is like a Caterham - small, light, very manoeverable and very much 'seat of your pants', designed really for training and for the driver to have a lot of fun in, rather than serious and practicle transport.
The 44 on the other hand, is more like a Mondeo - more stable, faster, a great compromise between economy and performance, no bells or whistles but reliable and comfortable - plus you can take your mates up.
Despite the apparent similarities, they are complete different machines aimed at completely different requirements - ultimately it's your own circumstances and reasons for doing this that will determine which one is for you.