For me it all depends on what has taken my fancy that week
I love bolting the scope on to a new toy the day before a competition and shooting the rifle (and sometimes the scope) for the first time.
In fairness I did shoot the same gun but with differing scopes for a whole 2 years. Boring as hell
If shooting consistently high scores is your only goal from HFT then pick a rifle/scope combination and learn it inside out. However if you enjoy playing with different toys and the challenge/fun that this brings then carry on as you are