Yes. So, when we start talking about spares and future rates of revenue and increases, I'd probably like to deal with the topic in a fairly broad fashion because I think it comes to the heart of several questions, which may be asked during the course of this call. And I'm going to start off with, first of all, in press release this morning, I think we indicated that we expect our spares revenue this year to be about $1.25 billion now, which is a further increase on the last quoting number, which is about $1.1 billion that we gave, I think on our August call. And I think the first point, I'd like to make, which I think is the fundamental and most important one for investors is the strategic positioning of the company. And what I mean by that is that in 2019, when our revenues were about $7 billion, our spares or our aftermarket exposure was about 11% of those revenues and obviously, a higher percentage of the Engine Products business. And 2024, given the outlook for the year and our revenues close to $7.5 billion is that spares or aftermarket exposure has risen to 17% and that is a very significant increase, especially given the growth in the OE builds as well in aggregates. And going forward, my thought, is over the next two, three, or four years, that that level of aftermarket content of our revenues will go to be in excess of 20%. And so I think that what that means for the company and therefore, the owners of the company is that it implies less volatility and with less volatility given the exposure for the OE production. That's really good for shareholders. So, I think that's the most important point, which I think should resonate. And then I'd like to deal with spares in the more topical framework of supply chain constraints because you've heard and seen and reported in the press quite a lot of commentary around the availability of engine spares and turbine blades in particular, and its impact on engine production. So, again, I'm going to repeat one data point that we provided in the last call to say that specifically on LEAP engines and the type of blade, which is currently used is that -- our output is up from 2023 by 40%. And for top 10 turbine blades for the company across all engine manufacturers, our output is up by over 50%. And of course, when the casting leaves Howmet, we don't designate which part of the end market it goes to whether it goes to a spares, builds and specific OE engine build. Given the commentary by Airbus about having gliders and lack of engines is that we had -- and asked for a joint meeting of every interested party at Howmet to go through the production data, so we could demonstrate and show specific production. And what they could see is that plus 40% or 50% overall, and also the production of the new engine blade, we're just awaiting the final approvals by the FAA and EASA. And what is remarkable, I think, is that we've increased production by the specific blades that I've talked about, while also producing many tens of thousands, and in fact, 500 engine sets of blades for the new type pending approval. And those castings have left Howmet and been delivered to the customer. So, I've covered specifically what's been going on in terms of our production and also much more generally the strategic positioning for the company, which I think is much more fundamental than, I'll say, any specific commentary about production in 2024, which is, let's say, just moves into transitory situation. And of course, given the output of both the current and the future engine sets is that, that puts, I think, everybody in a really good position going forward. And of course, we're working really well with our customers to try to drive further increases in output, which ideally would be required. And so we expect both the increase in engine production next year to be robust and also the increase in spares requirements, which are also going to be robust. And even more importantly, leading to that longer-term trend of increasing engine, spares and total spares for the company as a percent of our revenues. And so the other thing which I think is really good for us is that what we want, of course, is more aircraft production and more engine production, both of the more robust LEAP engines, the more robust GTF Advantage Engine. And of course, then we'll be able to sell all of the other parts that we make for those engines, which are structural castings, low-pressure turbine parts for that part of the turbine and indeed fan blades as well. So, that's given you a pretty comprehensive answer to your specific question, but broaden it out, and I think in all of that, the most important thing is the strategic positioning with fundamental less volatility for our revenues given very significant increase in the aftermarket as a percentage content of the company.