Tango en el Cielo mentioned these two clips of the couple dancing apilado, Pasquale Bloise & Laura Grinbank, in a comment to 'Leaning'.
Interesting comment that 'One thing that Laura's partner seems to have in common with Ricardo is that his stance inclines forward'. Pasquale Bloise is quite a lot taller than Laura, and might also be stooping a bit to accommodate her. Ricardo was shorter and very upright, and he clearly inclines forwards when leading forwards. Very good posture, back straight and chest well out, must have a lot to do with it, but I suspect that he couldn't achieve it comfortably without some opposite pressure from his partner. Interesting too that there actually might be something a leader can do to create that contact: as a leader I've experienced it coming from a partner, and felt obliged to maintain it.
There are sadly few clips of Ricardo, and most are on tangoandchaos, so I can't embed them. This clip must be the best from YouTube; I can't get enough of it, but I've included it before. However, a new clip has very recently turned up. It's in a confined space, which limits what you can see although details are clearer, but a new clip of Ricardo Vidort is good news.