SH-AWD OEM 18" vs 19" RIDE FEEL?

Hey guys,

I got a SH-AWD Advance that comes with the 19" rims and its always a very rough ride everyday. Cannot stand it anymore so Im planning to purchase the OEM 18" to soften the ride a bit? But when I checked the tire specs, they are almost similar.

I did not had the chance to test drive the SH-Awd Tech with 18" rims before.

Can somebody please tell me that getting the 18" is worth it and will really soften the ride?

Thanks in advance.