I recently quit the local gym (budget restrictions) and started to workout from home instead.
I bought a little set of 2x30kg adjustable dumbbells, and built a little bench for doing dumbbell bench press. This being quite a light weight, I bought some 10kg plates to add up on those dumbbells.
My big surprise was that it felt incredibly more difficult to press, say only 2x30kg with the following setup:
5|10 === 10|5x2
than with this one:
2|2|2|4|5 === 5|4|2|2|2x2
The 10kg plates I bought are indeed quite large, but I didn't expect this to have an impact on the workout difficulty. Can anyone help me understand what's happening?