Mase, just by hearing your videos and having second thoughts, your problem I would say are the lifters you put it, not even the dephaser, the lifters do TIC, TIC,TIC, TIC,TIC, TIC,TIC, TIC, whereas a dephaser goes like TAC, TAC, TAC,TAC, TAC, TAC,TAC, TAC, TAC, which isn't your case, if you have served your engine well the dephaser should be OK, although if you are reopening the cam cover then would be wise to change both, although I would not change it TBH, it simply can't fail just by removing it for an hour or so. My two cents only though.