Zack,
I have the D7A (full duplex), but I don’t like the receiver sensitivity. I went back to using one THG71 for the down and the D7 for the up. The other thing I don't like about the D7 is you have to switch between back and forth between band A and B to adjust doppler. I would probably not recommend the D7 for satellite work. I have heard things about the D72.
If someone is looking for a single HT for full-duplex satellite work, I would recommend the D7 despite having to switch VFOs for Doppler adjustments. I have the TH-D72A, which works the same way as the TH-D7 regarding the need to jump between the two VFOs to adjust the receiver. It's a small nuisance, but a small price to pay for not having to deal with two radios when working full-duplex on FM satellites. I've picked up a couple of old D7s (one appears to be a TH-D7A(G), and the other may be an original TH-D7A), that I hope to get new battery packs for and make a couple of FM satellite stations when combined with Elk antennas.
Your TH-G71A is a good dual-band HT. Not capable of full-duplex operation, but worked well for me using groups of memory channels for FM satellites. The receiver was pretty good, and some would notice that I changed to a different radio from my normal radios when I used that HT.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/