Hi Matty;
I've joined WGT back in 2014.......and have NEVER putted using "Putter Pal". Depending on the "green speed".....I do "calculate" my putts & then read the greens.
My Putting Avg. is not very high though....only 42%. I've been putting on Championship speed greens for several years now.....as I reached the "Tour Champion Tier" approx. 2 yrs. after I joined WGT.
For me, at least, the "Putter Pal" is confusing.....I also have never used "Shot Pal".
Note my "Golf Equipment" on my Profile. I don't have the BEST clubs available in the PRO Shop like many "Tour Champions" have. The Putter I have been using for over 10 years now is "Level 19".
One of things that I have found to be VERY important is to "read the WIND direction & speed" before any drive or approach shot. And anytime I believe my ball will hit the Green on ANY shot.....I pull the Flagstick before I make the shot...as I believe the Flagstick crowds the hole a bit. In the past, I have hit many chip shots & flop shots on the green...and my ball would bounce off of the Flagstick. So, I pull the Flagstick...as I feel it increases the chances of my ball going in the hole.
Yes, it IS possible I think to PUTT with a degree of accuracy without using "Putter Pal"....just lots of practice. I play almost exclusively play 18 Hole rounds.
I just now finished playing a PGA Tournament (18 holes, Championship speed greens")....and put up a score of "64".....a good score for me.
Good Luck to you!
Jim