I agree, Sig 4 star forty or sixty would be perfect. I'm sure we (current warbird drivers) sound like a broken record with our advice. You really must learn to walk before you run. 6 months on the trainer was like crawling. Now you need to learn to walk. Get the 4 star and put some military markings on it, get good at that plane then do a H9 60 Mustang. Once you have the mustang down, then start looking at heavier wing loadings (If your 4 star survives, you can add weight at the cg to start learning heavy loadings)

If you want full on aerobatics, buy an aerobatic bird, you're looking for trouble with a warbird. Some sport types like the H9 will do some more spirited manuevers but they are far from being precision moves.

Have fun, be safe and above all be patient.

S1