mosc help with sw 4 update for V+ box

[boxer29]

hi
need to do a mosc for V+ box in pure which has taken a sw 4 ,the other pace 4001 has taken 3.7 sw in the same place ,,
i was going to do a mosc should i put a normal image or a blocker image ,,
should i do the emm mod in a normal image as mentioned in the novice angel cable guide .
I know blocker image is better ,,but it wont allow me to get into the mosc card if i want in the future ,,to change if any thing else happens
any blocker image which can be changed ,,dont want to fry my vermin making my mosc unusable again ,,as they did with fun ,,
i know even after using a blocker image ,,they wont ,,
can you take the tiers from an origonal vermin card from your area and then put them in the tiers of a flash from your area and then write mosc back ,for both sw4 and sw 3.7 update
can some one comment on it ,what people have found better then the other
thanks