10mg suboxone but just got some

I’m currently on 10mg of suboxone for using 300mg of oxy daily for about year or two before the money jus couldn’t keep up but I got my hands on a ball of fent and i have never done it before but Ik 10mg subs is too strong for anything else so how is the fent gonna hit? Will it push right through the 10mg? I plan on snorting it and doing a matches (red tip) size bump to start I want to start very slow then everyone 30 mins increase but I’ve also heard of lot of bad stories of people OD from using well on subs or thinking there tolerance would be the same etc etc. if I stay doing just little bumps until I break through you think that’d be the safest way? Or does anyone else use on subs and could tell me your experience. Please do not tell me not to do it as I’m going to do it I’m just asking if anyone can recommend the safest way cause i would rather give this a safe approach.