I beleive I cut mine to 146mhz length, that is mostly in the middle of typical frequencies

The antenna needs to be cut??
oh!oh?  
Is this the case for all 2m magmount antennas?  What about if it's a dual band?
I think I've got some more reading to do.

it's been cut for 146.000 (remove an inch).... if I find i get poor Rx and Tx, I may cut a little more and take it to 147.000

The way to really do this PROPERLY is to find somebody with a SWR (standing wave ratio) meter.  You want a SWR near 1 for max efficiency I believe.  

As for the frequencies, it's all 2m band, and the band is THAT wide (4 in 146, 2% avg. relative bandwidth), and all the frequencies are listed in the 'band plan' in your Basic Guide, as well as online.  Keep that handy, otherwise you may pick a simplex frequency some day and find you're stomping all over somebodies data packets, amateur satellite, or whatever.  

I'm no radio guru, but try not to restrict your use to rally on 2 or 3 days of the year, and other times not know what you're doing, p-ing off knowlegable users.  It's even annoying at rallies like Tall Pines, where there's so MANY radios out there, it can take only a few people to really mess things up sometimes.  Just a bit-o-friendly advice to be careful with the new toy.

Bring the radio manual with you, too!  You might find a version of it online.  Download it, and print it off.  Keep the original one in your files.  I still use my manual occasionally out in the field.

What's your call Doug?

Craig

ps - of course, you know by Murphy's Law this means I'll be the guy out there sitting on the PTT now!