I hope to answer some of these questions in the centenary book I'm lucky enough to be writing for Alwoodley, but there are all sorts of caveats and conundrums in the way of definitive judgements. The longer I spend with the material, however, the more I think that the bulk of the design is Mackenzie's. However, USGA-greens or not, the putting surfaces are not exactly what Mackenzie left us - the 16th was stepped, the 15th much broader, for instance. You can also argue about the bunkers - early photos of the 11th showing bunkers lying and raised above the putting surface, for instance - but you have to commend the work of the Greens Committee in recent years in establishing what they have done on a limited budget and with clearly defined objectives. The extent of their achievement will, I hope, become apparent in the book.