Tailwheel
Not aspiring to the level of a Pitts (yet). But just a comment as I was at about the same level in hours as the author and fund that even a couple of hours practice landings in a basic tailwheel aircraft (converted Pacer with the rudder aileron linkage removed) had a noticeable beneficial effect on my landings thereafter.
I really had to fly the aircraft down to the deck and on the tarmac which has given my feet something to do ever since and in comparison to my normal fare of spam cans here it had been a somewhat more automatic process.
I think I would take it in stages as it is all a good investment.