Yes I've shot both. My preference is for the Pro-Sport (I have 2...) but only because I prefer the balance further back.
It's essentially the same gun, albeit with different anti-bear trap mechanisms. The big difference is the cocking stroke, and where the lever "parks". TX, with the under barrel lever is more front-heavy, P-S has the weight more between the hands and although heavier, feels lighter to me.
Oh yeah, and the Pro-Sport's prettier!
If you're considering either I strongly suggest you try both. The choice is personal, and for me it's worth it but I know others don't like the P-S. You may well find that you like the looks of one, but the feel of the other suits you better.
Try before you buy!