The leading seed houses are developing rye grasses with much finer leaves for the golf market than would be considered standard. We have elected to use a Rye/Fescue blend for fairways, green surrounds and semi-roughs on my new UK project, for its wear tolerance, suitability to a heavier soil and presentational advantages. The initial seed strike was almost entirely rye, which was a bit alarming, but this acted as a cover crop for the slower growing fescue, which has come through now.
Personally, I still find the blend to be a bit more 'sticky' than I would like for the promotion of firm, fast conditions, especially on the tightly mown green surrounds, but when one is dealing with a heavy clay soil one has to adapt. The lies the golfer will get shall be clean and bristly. Links like they are not, but again I stress, for clay soils the rye grasses have much to commend them.