Save the extra money and get the TPU-X. They are both comfortable but the TPU to me has created such a gap between the 2. Be also warned that you have to get used to what Brunswick has created. I like the sawtooth 9 from Dexter as well as the 3G red felt heel. No Dexter sole will fit the Brunswick shoes.
When I used the Brunswick sole and heel, the problem I had was the 8 was not enough and the 10 was too much. Same problem I always have with any shoe, (Dexter SSTs, 3G Tours, Storm SP2 900s), so most times, I'll have to modify the sole. The Blue Felt Heel is awesome, the only issue with that is the rubber made into the heel to shape the blue felt like a crown. Sometimes I get in sideways and catch that rubber.
My honest opinion of the shoes are that they are AWESOME!!! The most comfortable shoes I've ever put on. They are made like sneakers and fit as such. Those drawbacks I mentioned earlier are nothing to be too concerned about. I feel like with those issues resolved the shoes would lap everything else because they are better built and cheaper than any other HP shoe on the market.