SW/DP Dragonite... TM or not?

Dragonite is an offensive Pokémon, so yes. Dragon Tail is better both offensively and defensively. Dragon Pulse is just a worse Outrage to paraphrase GP

No, you need to change Dragon Pulse as well to make it viable.

Don't change any moves.

I made the same change. I have a high IV dragon I maxed out when defense still mattered. Now it has DT/DP. It works almost as well as OR and is quicker. I may eventually change the charge move too but am afraid of getting HB.

Save the TM. The attack power is okay, but not worth the TM. Save it for legengary.
I have a 95 iv Sw/Dp at level 36.5 and grind for a fresh dt/o or dt/h nite would be ideal.

DP is by far the 2º worse charge move dnite can have, I think I would prefer a SW/Outrage or Hurricane than a DT/BP, at least SW is great for dodging.

GamePress just ranked DT+DP a A attacking moveset (A- to be accurate)....so just go ahead.
I would reroll DP too if i dont have a Outrage Dragonite.