Hi all, I'm looking for a guitar wireless unit... I was looking at the Sennheisers, they have 2 units very close in price... one is the 1092 gtr, its on sale for $300 at MF... they also have the ew-172 for $369, they both say that they normally cost close to $800. Has anyone used either of these units and had good experiences with them? I guess the Ew172 has a better looking face on it and it had aentennas... the other model didn't... I just want what will work the best. I also looked at the higher end shure units but don't know anyone who owns one of those either... all help is appreciated. Thanks