50calty
While I know that XTP's work and have been used very successfully by many many hunters... but I will not hunt with them at all. I question their reliability here and there, not always but - it a bullet comes apart - I have a worry. Yet i know that a lot of people will continue to use and that certainly is your choice.
The Speer is a bonded bullet with a certain amount of controlled expansion, so it can not come apart or pan cake as a Hornady can. I have often called the Speer a 'poor man's Nosler Partition'
I believe the Hydrostatic shock that a Gold Dot/Deep Curl will cause will have a very damping effect on any thing that it hits. Also I believe the Gold Dot/Deep Curl will also allow you a greater margin of error and still provide a quick humane harvest.
Examples...