I have a very tight space for a project that requires a mega board , the "power in" plug takes it over the space available. Are there safety or other concerns soldering to the lugs for the "power in" socket on the reverse of a mega 2560 rev 3 board board? the board is fitted with an elctrofreaks TFT LCD MEGA SHIELD v2.2 and a TFT_320QVT LCD screen. (the elctrofreaks mega shield uses vin pin) 1 other PWM pin is used and an esP8266 board on a uart channel The power is from a regulated power supply. If I do this, am I correct that the regulator and polyfuse will still be used?