Brendan
You may be missing the point that the company will gain a Corporation Tax deduction for salaries when/if salary extraction takes place in the future. So the 'tax inefficiency' argument against retaining funds in the company is weak enough. Incurring a tax cost of 50%+ on extracted salaries is hardly tax efficient either.
Otherwise, I can only repeat my earlier point that blowing windfall profits on salary extraction may prove a false economy if the company needs a reinjection of those funds at a later stage. By then, half of the entire pot will be gone in tax.