Yes I have... The G7's are not on the same level as the HD-B's... I've had no problem ranging trees to 1500 with the Leica's, Glass is crystal clear, and you may want to look a little deeper into the option of inputting your own ballistics, you can, but it's not what you think, or not what I initially thought...
NOW holding the 10X42 HD-B's in prone position, ranging steel @ 1200 and glassing the countryside, and also holding the 10X42 Swarvoski EL's laying prone ranging steel and glassing the countryside... Both are very good, ergonomically. Ranging power goes to the Swarov's I've nailed trees over 1900. Glass goes to the Swarov's HANDS DOWN, trust me, I looked through both sets multiple times in shadows, in low light, and Swarovski has it made. Reticle, I like the HD-B's it reminds me of my Vector IV's and it's just something I prefer.
Either way, your looking at something incomparable to the G7's, starting off with the Glass quality.