there is a former D1 player at our club who doesn't play that much anymore. However, when he does play, he just kind of shows up and grabs a player's frame demo -- with no particular concern.
He likes beating-up on the top club players -- 5.0s in pro tour costumes wearing thermal bags, backpack style, stuffed with several matching lead-loaded whatevers.
I asked him if he ever thought about getting some matching frames and he said he wasn't playing to keep his scholarship, nor was he playing for a living. He continued by saying that if his game was off because of racquet/string variability and the consequent timing problems, than he wanted to blame his strokes regardless. He said it was better to have to adjust his swing to the racquet -- adjustments not unlike the ones you make when you play outdoors under varying conditions -- rather than opening "the gear door". He said he'd rather tweak the trajectory of his swing than worry about which polyester provided the best spin. He said he always wanted to make his strokes accountable and adaptable because he had seen too many people blame over-hitting on imperfect racquets and bad string jobs. He said his timing actually got better when he forced himself to make constant micro-adjustments to endless variables. He said he would never open the gear door, a door, he claims, many friends walked through years ago -- friends, he said, who have never "returned". Actually, he said, some of them returned temporarily, but always wearing a different outfit and playing with a different racquet -- they returned, but not long enough for their mechanics and style to emerge from the gear. He said he just didn't have the time to face the infinite range of choices, to research every nook and cranny, to succumb to the paralyzing delusion that his best tennis was always in the future, lying somewhere between a life-saving hybrid and another strip of lead.
So my answer is: if you want to switch it up . . . go for it.