Using mine in a similar situation. I have run 3.00a11 since it came out.

1) The tweak order stuff works better, but is still not perfect. Mine tends to lock up more than crash (reboot via Hijack)

2) I find I quite often get player software crashes in tuner mode. It seems I get more so when the tuner is "paused" i.e. muted.

IMO 3.00a11 is the way to go if you're willing to put up with the odd crash here and there. Peter (I think) got quite a few last minute fixes in just before a11 came out. Here