Help with changing my setup

Before you even get to the rubbers & blade as a player returning after 15 years, ,  TPG (Traditional Penhold Grip) is a bad idea. TPG was great until RPG(Reverse Penhold Grip) was developed (just as hardbat was indeed great until sponge era arrived).  But HPG (Hybrid Penhold Grip)  is the best as used by Liu Guoliang.  I have seen some successful HPG players with short pips FH and inverted rubber on BH.  Liu Guoliang did block & smash (& also loop)  on FH & block on BH short pips using forehand short and he looped with his inverted on their backhand but boldly  & often successfully twiddled at strategic critical points of a match such as at deuce & looped with inverted on the forehand.

For an amateur player diversity of stroke production is far more critical than consistency, because most amateurs will never reach the consistency levels of a pro , however hard they try based on psychotic delusions that they can be anywhere close to consistency of Ma Long or Waldner.

So when you limit yourselves to TPG, you are making a huge mistake by limiting your capabilities. I am not saying you will be definitely be good with RPG if you tried . May be you will suck. I do not know but in which case you probably should use long pips on your backhand to maintain your diversity in your overall playing style.  But it is lot more fun learning more strokes & more serves everyday as far as I am concerned.

I don’t know how old you are & how good your forehand loop is & how much better you may get because it gets progressively harder to sustain a looping or chopping style or lobbing style as you get older. So maybe you are not even a forehand looper but probably must be using short pips on forehand , I don’t know but Guo Yuehua is the only high level TPG inverted looper I can think of (after 1950's) but I can think of many World Champions like Zhuang Zedong, Jiang Jilang etc & players like He Zhewen, David Zhuang who are short pips FH player who played with TPG