If you really, really want a thermal front add-on then OK, but don't buy a Swaro, - there are quite a few thermal front add-ons available which are better and cheaper than the Swarovski front add-on
Buy a Swaro and you're paying for the name - not for the glass or technical experitse
There is no glass worth speaking about in a thermal and Swaro simply don't make any of the important bits in a thermal (objective lens, sensor, display, electronics, battery etc)
You also need to consider how much time and how difficult it is to change from a spotter to a front add-on when you see something with spotter you might want to shoot.
That time and difficulty varies tremendously between different makes and models of thermal front add-on
In practice you may find it better to continue spotting with your XG35 and have a thermal front add-on already fitted to your scope
Cheers
Bruce
