TT mount is very nice, especially the anti vibe, locking version. be aware, it does have a couple of drawbacks though:
1) the ali construction of the cradle interferes with signal reception. i found an external antenna useful.
2) mounted on the crossbar, it will interfere with certain tank bags. i've always used mine in conjunction with a RAM mount for that reason and the fact i can position it where i want easier.
i actually use the cheap RAM mostly now. as it is so simple & relatively small.