The pressures you like aren't excessive, not enough to reduce your grip (I hope.) But it seems odd that you can't get on with the recommended pressures. I suggest getting the bike checked. Maybe it wasn't built quite right? Something wrong with the suspension or the bearings or the axle or swing arm?
Have you had this with previous bikes? Are you really heavy?
The pressures you like aren't excessive, not enough to reduce your grip (I hope.) But it seems odd that you can't get on with the recommended pressures. I suggest getting the bike checked. Maybe it wasn't built quite right? Something wrong with the suspension or the bearings or the axle or swing arm?
Have you had this with previous bikes? Are you really heavy?