Looking forward to trying it out once a decent patch comes out to fix the recent bugs. In theory I'm definitely in favour of the new clumping change, it's realistic & should encourage war & trade more when one civ lacks a resource. Would be nice if the A.I. is programmed to go to war if it lacks an important resource or make demands for that resource.
Durantium is very necessary for everyone so everyone needs a bit so that shouldn't be as clumpy as other resources & maybe the Onyx/Luxor should start with a better chance of getting decent amounts of promethion.
Anti-matter, Elerium & Thulium aren't super important imo. It's possible to compete with the AI godlike fleets without those resources on the maps I play on, if you have good ship designs & enough production. Those resources make it easier. Thulium I find is the most useful for armour.
Getting earlier sensor boats out will be a good idea to find the best clumps.
The AI sells starbases & resources it has a lot of far too cheaply especially if tech brokering/trading is on.
Worst case scenario is buying from the bazzar.