Not in a 7mm-08, but I do shoot the 120g and 140g in my 7mm RM (as welll as 168g in my .30's).
The only game I've taken with a TTSX was last weekend when I hit an antelope high, above the centerline of the spine. The wound path was only 4-5" long in total but the last half was an open "U" shape channel.
HAving had a very bad experience a few years back with one very unfortunate antelope and Barnes XLC's which didn't appear to expand, I've been loading the TSX's. Haven't tried them on game and probably won't now that I'm shooting TTSX. Last week's TTSX results ended any nagging doubts I had about reliable expansion and I'll be using 168g for elk in a few weeks.