I am now using a Redis Object Cache plugin and the default PHP7 Opcache is also enabled. This combination isn't providing the ultra fast speeds that xCache & WP Super Cache used to.
There is a wonderful Redis front end cache script here which gives me blazing fast speeds but seems to break some Wordpress functions. Perhaps it isn't fully compatible with PHP7.
Do any of you who use Wordpress with PHP7 have any suggestions on the best cache combo to use?