This is a question about WYSIWIG -- not scratchbuilding, not proxies, but wysiwyg on models.
the question came up as I'm preparing for a Rogue Trader tournament, and while my primary question has largely been answered by the event organizer (thankfully in my favor), it is an interesting question because it comes on models with "of course!" upgrade options.
My specific question was in regards to the Harlequin's Kiss -- rarely is a weapon so ubiquitous as the signature weapon of the Harlequins. However, the weapon is unusually rare in terms of actual models, from across the long range of Harlies models. Of probably some 30-40 different models since the rogue trader era, there are perhaps 6 different Harlequins Kiss models, only two of which are currently found in the Harlequins model range. I am fortunate to have most, if not all, of the models in question. But that is still perhaps only half of the models that I will be fielding. For the record, this tournament organizer has stated that all of my classic range models, at least, can be counted.
Another good example might be Frag Grenades on Marines, in editions where they are not a default piece of wargear.
When you come to these sorts of issues, what is your perspective on running them or allowing them. In a tournament situation, would YOU allow a player with models that were not all WYSIWIG to wargear and minor weapons to count them? Remember, this is in a tournament setting.