Currently using a Leica 2800.com syncing with Kestrel 5700 Elite. I'm tired of the slow initial Kestrel sync and rangefinder side going to sleep too quickly. Does either the Leica 3500.com or TerrapinX sync to Kestrel faster and/or stay awake longer than the 2800.com? Open to other options as well, just not interested in the all-in-ones unless a Kestrel integrated 15x56 SLC is on the horizon.