Twinning

Spoilers for the Wax and Wayne era. Just finished the second era and have been waiting since the end of the first book for the spoken of "effects" to come into play but haven't explicitly seen them. Reading through all I can find on here, I have found: 1. Synergies are specifically NOT the "effect" being spoken of. 2. Savantaism is specifically NOT the effect. 2. Many hypotheses that Wax's bubble is the effect. However, this is simply "pushing out gently in all directions" which is only different in degree from Vin pushing strongly in all directions AFAICT. Also, his doppelgänger also creates a bubble despite having gained his abilities through hemalurgy, and (I don't think) having the skimmer ferring ability that Wayne has. I don't see anyone talking about his exclusion ability. His own metal is unaffected by the push and he has even excluded metals on a person with him (maybe even only near him IDR). It's a specific conscious action he takes and it isn't accounted for synergy or strength. Initially he holds his guns upward over his head (center of gravity) to exclude them but later, perhaps because of evolving savantism, he doesn't even need to do this. IDK. It seems WoB has been vague on what is due to his savantism and what is due to the effect. What do other people think? Also interested in what people think the effect for Wayne might be but that seems even more nebulous. I have hypothesized he has some way to have a bubble that stores his things. On occasion he just drops his props once used but always seems to have whatever he needs and a potentially ludicrous, impossible amount of things in his pockets.