A bigger MAUW isn’t really an issue with taildraggers. A large one can be easier to tame on the ground than a small one in many cases.
It’s basically all down to the combination and ratio of the following:
1. Main wheel track width. (Wider the better)
2. Distance between main wheels and tail wheel. (Longer the better (normally, but with exceptions)).
3. Wing length / weight (and ‘swing’ inertia). (Narrower and lighter the better)
4. Stall speed (lower the better)
5. Brake power in case an individual ‘dab’ is needed.
6. Wind direction
7. Surface (grass much better)
8. Engine power (take off torque swing)
9. In a tandem, whether you’ve got someone in the back or not (if it’s solo from front) as this will increase the chance of the tail wanting to overtake the nose. Less of an issue with bigger machines.
Basically. If you can keep the deviation from ‘straight ahead’ to no more than a tiny amount, it doesn’t matter what size the aircraft is.