If you go to the 2+ tune level the DSG starts to act a little weird but you can live without the tune if you want. Most off the shelf DSG tunes don't provide extra clamping force nor would it be necessary in your case. Usually the stage 2 and 3 tunes increase the software torque limit. Normally our O2E trans are set for 350Nm or about 285ftlb. When power exceeds that limit the TCU communicates with the ECU and power is dialed back until back down to that level. They just set that limit higher usually 500Nm or 368ft lb. It is possible to find a tune that will increase clamping force without getting a custom tune but you won't need one until you go to bigger power. I ran my car for 4 years with a K04 turbo at 335/336 to the wheels before it started slipping. It saw track time as well as street.
Weird = cruising in Auto the trans may start to hunt gears up and down. Manual driving is fine.