I just ordered a 9700 and now I need a 23cm antenna. I was considering getting a Comet GP-95, since it is similar to the Diamond X-50 I have already, but tri-band, and not much longer than the X-50. I live in an HOA and the HOA approved the X-50 on my roof a while ago, so I was thinking of just quietly replacing the X-50 with the GP-95 and using a triplexer to feed the antenna. If I understand correctly if folks are using yagi's locally, this won't work since it will be horizontally polarized, so that mat be the biggest downfall. I've written to the owners of a few local repeaters here to see what antenna setups they are using. If vertical I'll go with vertical. In any case - what sort of performance can I expect out of 10 watts on 23 cm with an omnidirectional antenna? It's mounted on my roof above the roof line.