As many have said, I think it is wise to keep meter speed consistent with all clubs. About the irons, I used to use the TM stuff because, well, it just happened that way. I was very happy with them but a friend that I played with a lot had the G10's and I noticed that with the long irons he stopped on the green while I rolled out. I scratched my head a bit about that since the TM's should have more spin but then I realized the obvious - the higher trajectory of the G10 more than make up for that half a dot spin mark.
At master and higher tiers you play a lot of 180+ holes and that is where the G10 shines. I15 I have not tested, would be nice if someone could give some input about how they compare to the G10.
In the end though, no club is better than your timing. If you ding often - go for precision, if not, go for forgiveness. In all honesty though, I do not find my G10 less forgiving than the Tour Burners