Yeah I'm with NL on this one. Especially the part of the TT cycle.
You work on your game. You get in your 40s and up and all of a sudden there's a young buck who is closing the gap on you or you one you already can't beat.
I'll just be real. Chances of you ever catching him are pretty slim. He's going to improve at a rate faster than you and he's coming into his athletic prime. The modern game is just designed for agressive players. So you play semiller grip and by your own words mostly push. Well if you run into someone who loops backspin really well, you're going to feel like they're the hammer and you're the nail and you're trying to block really spiny loops coming in.
The good news is that at 1100, you have a lot of room to grow. But it'll require things that as a 40 year old is hard to do. I know this story all to well. I'm 40 myself and have two young girls. Working full time and family, I just don't have the time, nor really want to, put in 15 hours a week or traveling to some camp all in the name of being able to beat some young kid.
I'll leave you with this. The good news is that you're still plenty young and you can be really good at this game at an older age. But this sport is all about time put in. How many hours a week are you playing? What are the quality of opponents you're playing? etc.
I myself just try to enjoy the ride and that works for me. I'm not putting pressure on myself to improve. Just play & have fun if you're not a serious, traveling tournament player. When you see those young bucks and can beat them? Pour it on them. Relish that while you can because generally their time is coming when you'll no longer be able to beat them.
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Later post edit:
As i was thinking about it though, if you're a Seemiller player, I don't understand why you're playing Butterly Tack Chop on your backhand.
I probably would play some sort of Long Pips as that'll likely give many players at your level fits. The spinner the player or the spinner the serves, the better. Many players unfamiliar with Long Pips simply hate it and struggle to figure it out. Your young buck you play might be completely unfamiliar with them which would most likely gift you a few wins until he begins to figure them out... That is assuming you know how to use them.
I'd also watch a lot of video of Dan Seemiller play and try to understand tactically why he does certain things.
IMO long pips is better than anti-spin though. Anti IMO just seems to deaden the ball somewhat. So looping that is easy (as everything you loop is just vs a somewhat deadish ball) where as if you were to get a high reversal LP, that can cause people to really hesitate vs that.
Also, if you don't feel comfortable looping backspin as you've said you push a lot, vs backspin, a Long Pip bump (which actually returns a weird topspin ball) to opponents can force them to either miss or sometimes mistakenly push that ball not knowing it's actually topspin. Then it's a pop up and you kill that for the point.
The beauty of having long pips on one side is now vs backspin, you get to choose what you return to the opponent. You want to send back to them backspin? Then push with your inverted rubber as you normally do. But would you like to switch it up and send back a weird attacking ball that's topspin? No problem. Learn how to do the Long pip bump (see my blog post below). Now you've become much less predictable.
That's what I'd recommend. But playing long pips takes some practice. There are rules to the type of shots you play. I don't really play Long Pips anymore so no longer maintain this blog but the rules or ideas of what to do vs certain spins still apply.
http://chroniclesofgossima.blogspot.com/2016/09/the-rules-with-long-pips-close-to-table.html