I have had a lot of very well-respected bowling professionals and coaches tell me that I should change from being a “full-roller” ...

...to being a ¾ roller.

From what I understand,
a ¾ roller has advantages that the full rollers don’t…like more pin action, and also being able to take advantage of all of the “super-duper-technology-cores” that bowling balls now have.
But, my question is this;
if I need to change so much… to go from full-roller to ¾ roller… but I am already a fairly decent bowler (for bowling in league 3 yrs)… (214 book avg., (2) 300 games, (2) 299 games, and I have lost track of the 289 & 279 games…all within the last 13 months….and still growing, why should I change? I must admit that this season I have been struggling a little, but I blame that on execution...not because of the ball roll.
I mean, I did some research, and I read that Jim Maxey (from Atlanta) won 21 PBA Regional Titles…and he was a full roller too. So, what's up with that? I mean, doesn't that mean he just perfected what "he does"?
Anyway… I just want to know… is it really worth it? I took a lesson today from Mo Rich, and he says I should change to the ¾ if I want to get better. Also, Dannial Cohen and Lonnie Hill says I should change.... Now, I believe their opinions…from “their position”…but, I don’t want to bowl for a living..or go on a tour or any of that. And even as a 3 yr. novice bowler...I still sometimes beat many of the "technically correct" bowlers who do bowl everyday, etc, …and I do actually win a little extra in some of the tournaments, and league brackets I enter too.
Anyway, I look forward to other opinions about this…because for me to change...it's gonna take a big change as far as balls being re-drilled, and also a lot of time to actually develop a new way of bowling.
Thanks in advance,
Chase
ps - so, am I also to believe that If Jason Belmonte starts winning all of the time on the PBA tour in say the next 3 years (because of his higher revs, and more pin action) ...that all of you who use 1 hand need to change to the 2-handed way he bowls?