Ive have the thrust original trim on my surf boat, great trim never had issue at all. Bought the new thrust pro trim but never hit the water with it, was having the ski setup and changed to the xmetal as it was there.
There is very little throw on the thrust Pro trim but like wise there is very little on the RRP. Less trim means more height on your flips but at the same time you will need a better technique. Lots of trim will make you rotate a lot faster so better if your learning I think. You always have the option to back the xmetal off, where you cant increase the thrust/rrp with out taking a grinder to it.
Have the X-metal on flat water ski. If you do the b pipe coupler mod to act as a flow guard then it beats the thrust by a mile. Steering is so sharp I had to back it off a bit as it made the ski turn way to quick. Makes big spins almost effortless compared to the standard thrust trim.
If I had the choice again I would go X-metal for sure.