anchor.diff:  
   /obj/item/device/flightpack/process()
   	if(!suit)
  -		return 0
  +		return FALSE
   	update_slowdown()
   	update_icon()
   	check_conditions()
  
positive.code: 
  /obj/item/clothing/shoes/flightshoes/proc/relink_suit(obj/item/clothing/suit/space/hardsuit/flightsuit/F)
  	if(suit && suit == F)
  		return 0
  	else
  		delink_suit()
  	if(istype(F))
  
negative.code: /obj/item/device/flightpack/proc/disable_flight(forced = 0)
  	if(forced)
  		losecontrol(stun = TRUE)
  		return TRUE
  	if(abs(momentum_x) <= 20 && abs(momentum_y) <= 20)
  		momentum_x = 0
  		momentum_y = 0
  