@Jonno
thanks for registering here. As far as I can tell you are the first post wa dev from T17 that take the time to go to the main worms community and answer question. Just for that, I'd say good job, it means you guys have the right idea.
The fact that this game is dev buy a small group must be a huge challenge!
I know it's too late to rethink the physic of the game but what I can say from my understanding of WA that made the game so famous is the combo of speed, accuracy and strategy.
Take the ninja rope for example. What does the WA ninja rope has that beside wwp no other game has?
You can go so fast with it that other people are like wow looking at their screen and even if you are the one playing it can go too fast for you! Which mean you actually need an extreme focus when you use it. If you combine this with the fact that the ninja rope need to use 5 keys (arrows + space) and that it is extremely responsive (people buy wired keyboard just for roping!). My point here is that I can't recall any other worms game that had a ninja rope that was answering these need. Finally, you have to pace your speed according to the time left which goes into the strategy side. Scheme such as elite/team17/pro/intermediate need lot of strategy. Not mentioning that this community is crazy about "removing" the luck factor. That's how competitive WA is actually. This mean that even if WA is extremely accurate in many way, the community actually is not using all weapon in the league context (I don't think I ever seen armagueddon in a league game and I am quite sure a bunch of other weap are barely never used because they just have too random outcome).
I could go on and on about how shooting with a zook with low gravity allow you to have angle that you could not have without low gravity while being really pixel wise. How people use rulers on their screen so they can have the best shot when they use nade. How people basically learnt all possible nade shot on a map and know pixel wise exactly the angle and the power to give by heart.
WA is far from perfect but it has these features that allow competitive gaming while having fun.
My point here is not for the initial release. If you are in a startup set up, we all know you just need to get it out.
However, if you plan to have update. I'd recommend you to keep this in mind as introducing new weapon that are luck based won't be really appreciated even if the idea behind the weapon is really cool. Or if you plan to edit the physics of the game don't make it less accurate or with randomness in it.
I wonder how often you are going to come here and post. If you plan to be active and responsive to the community (who knows). You might consider asking MI for a sub forum.