For testing flavors there is no reason to use Royal wire. It's expensive wire men't for cloud chasing. Go buy some cheap kanthal it will get the job done and for what you pay for 6ft royal wire you can get 50ft of A1 kanthal.
Also Tugboat RDAs are not ment to be run as single coil RDAs. I am currently using one and have 2 28g micro coils wrapped 5 times around a 3/64 drill bit. Gives nice clouds and taste. I think it's around .4 ohms if you use Royal wire it will be below .1 which I don't recommend since this is your first mech and is not authentic.
Also like everyone else has said you need to get a Sony VTC4. You do not want your battery to vent it could be a very painful situation for you.
Good luck in the future with making your juices and be safe vaping
Also Tugboat RDAs are not ment to be run as single coil RDAs. I am currently using one and have 2 28g micro coils wrapped 5 times around a 3/64 drill bit. Gives nice clouds and taste. I think it's around .4 ohms if you use Royal wire it will be below .1 which I don't recommend since this is your first mech and is not authentic.
Also like everyone else has said you need to get a Sony VTC4. You do not want your battery to vent it could be a very painful situation for you.
Good luck in the future with making your juices and be safe vaping