Look at the quality of the image. This will be intrusive when viewing the Moon and bright planets. The 24.5mm ones will therefore probably not be transferable if you upgrade your telescope in the future. Any jerky bits make focusing difficult. It should be minimal.
Perceptible play is an indication of a poorly made focuser.
Manufacturers try to conceal it by over-tightening and by putting excessive thick grease into the mechanism. It also gets transferred, by the user's fingers, to optical components, where it is a nuisance to remove. Measure the diameter of the hole. This is the true aperture. This aperture stop is introduced to disguise poor quality lens.