The 260/264 really isn’t that big.
It just seems kinda big to me for around town A/C use and low rpm OD cruising....... but maybe not.

Idle quality with rollers can be a lot milder than the duration @.050 would indicate.

I sold a 264/268 solid roller to a guy with an RPM headed 500.
He had been running a XE294 hyd cam(250/256)..... and was worried about the drivability with the roller.

It was a actually way better with the roller than the big hyd cam.

I used to run a 259/264-108 roller in my 9.7:1 448...... low speed manners were milder than a MP 509 cam.