I personally don’t think that particular strain is an ideal choice for a bigger beer. It has great performance in terms of ease of use, being a dry yeast, and it ferments quickly and drops brilliantly clear. Good characteristics for a light to medium gravity British-style ale, but if the temperature drops too quickly in a larger beer, it seems to go dormant and drops out of suspension way too easily. And it sticks to the bottom like crazy, so good luck getting it re-suspended.
S-04 has its origins in Whitbread, as is WY-1098 and 1099. Also wlp007. They aren’t identical to S-04, but very very close. I’ve used all three in 10%+ ABV beers, and they’ve performed well. So if you’re willing to go through the steps of making a starter, I think these are much better choices for a high octane beer than S-04.
Of course, I hate making large starters, so my standard practice is to make something in the 1.040-1.060 range and then pitch the high gravity wort on the yeast cake.