who said anything about cutting antenna wires ?
Also, if its "spitting a bit of fuel" from the exhaust, it means you maybe running a little rich, not a bad thing by any account as it protects the engine, it could also be residue from the break in process and rich needle settings. You may need to "Lean" the settings of the LSN or HSN by an 1/8 of a turn. Check your manual, if you have one, to see what the recomendations are for tuning the engine. If not, ask the forum, you should get all the help you need then.
After 5 years of nitro, i'm still learning about things myself, not neccesarily engines per se, but about everything else, little tips and tricks i didnt know and so forth, about new vehicles (to me at least) etc.