Good question. I guess more questions would need to be answered, such as, how often are you changing your views? What is the basis for changing? Have you gone from one side to the other and back again on many issues? What is the primary reason for the change? Do you feel pressured to change? Are you worried how others see you?
I am sure there are many more such questions to help determine if there is overpliancy or lukewarmness overtaking you. I think if the stance is based on scripture AND there is no scripture which disagrees with the stance, using solid contextual support, then you are ok. Being open to a differing interpretation is all well and good, but prove (test) all things.
I do not change abruptly, or without study or reflection. I do know that there are those whom I respect greatly, as intelligent and reflective Christians, but I do not believe as they do, even though I think I have a fair understanding of their Biblical reasoning. The fact that I hold differing interpretations of some scripture apply other scriptures in differing ways does not cause me to think of them as wrong or unscriptural.
But there are doctrines that I was taught in my early Christian up bringing, which were wrongly narrow. The Pastor, believing another denomination was dangerously unBiblical. He would cite scripture and put forward interpretations that supported his view, but we would not be made aware the scriptural basis of the other church.
A minor example (and please do not start a war about this): In many Baptist churches, unfermented grape juice is used for communion. Most Baptist denominations forbid of strongly discourage the use of intoxicating beverages. Many Pastors go so far as to say that when our Lord changed water into wine (John 2:1-11) it was grape juice, and that the cup in the Last Supper contained grape juice mixed with bitter herbs.
I took this teaching at face value. I still use alcohol very seldom, although I do drink an occasional beer, or have some wine with dinner to celebrate things like anniversaries. But, I have little doubt that when Jesus turned water to wine, it contained the customary amount of alcohol, that the Last supper cup contained fermented wine, and that in 1 Corinthians 11:20-22, Paul was chiding early Christians in Corinth for getting drunk on communion wine.
As my Christian life expanded to include service and fellowship beyond my home congregation, eventually being severed from my home congregation when I entered the military, I learned that disagreements about scripture does not necessarily mean that one is more right than another.
The Bible is truly a miraculous book. The text, while requiring rigorous standards of exegesis (what does the text say) and hermeneutics (what does other scripture say and in what social and historical context), its living quality comes from the way the Holy Spirit reveals the meaning to us, both as individuals and as a wider community of believers, and how the Holy Spirit applies it to our individual and congregational lives.
So, when I am visiting another congregation, or talking to someone with a different take on Christian life, I really try to understand what their view is along with the background. I find that if I do not take someone else's positions as an affront to mine, I can come to a better understanding of it. It is more often that my understanding is enlarged than I find my understanding either clearly more correct, or in error. But, there have been specific instances, some more critical than whether 1st century communion involved alcohol that I have significantly changed my views.