Ahhh. Zen-50

I too have one that has been equipped with a YS-63FZ and APC 12x7, Rossi-60 Long Pipe, and a Tower-75 (Purple version), it was VERY fast in each config. with the Piped Rossi getting the speed edge (sorta old school fast pattern!) The wheels are VERY small intentionally, as the wheel wells are small also-
It is not an easy airplane to land smoothly, but as mentioned if you keep some speed it is no problem- Congrats on moving up, make sure you pop your head in here once in awhile.... I know I like to