Looking for some cheap rubber for training.

Depends what you are are looking for... Please tell us more about your playstyle.

First of all, I think that both Jupiter 2, Big Dipper and maybe Bloom are a league above most of other rubbers you mentioned. I wouldn't consider them training rubbers.

I played with Yinhe Jupiter 2, Big Dipper, Yinhe 9000D, Palio Hidden Dragon, Friendship cheapwing and numerous others cheap china training rubbers. I have packaged and not yet glued yet another palio hidden dragon with harder sponge, bloom, ak47 and moon pro. About the latter I will be able to speak after I properly test them.

I use daily Big Dipper on backhand and Jupiter 2 on forehand. Big Dipper is by far my favorite rubber from the bunch. I kinda regret I didn't went with 2x Big Dipper.... While Jupiter 2 is a really fun rubber to practice with, It remains really hard to use it in matchplay. Big Dipper for me is much easier to handle and costs same. I will gladly follow this post up when I try new rubbers. All of yinhe flagship rubbers are available only in hardnesses ranging from 37-40 (DHS scale) which might be a bit too hard if you want truly training rubber.

If you want best performance to price ratio rubber that would be considered training, I would go for Palio XXX Dragon if you want something spinnier or AK47 Blue if you want something faster.

+1 for palio ak47, just choose the right sponge color

For non-tacky rubber I hate AK47. Very disappointing spin. Good speed though. I like Palio CJ8000 Biotech much better. Not as fast, but good spin.

For tacky rubber Yinhe Jupiter II is my favorite. I generally like it better than Hurricane 3 unboosted.

yinhe mercury 2

super 729fx

Jupiter II is in the category of a modern control oriented offensive rubber with a little oomph. Could be suitable enough for a wide range of shots and play styles. Yeah, It wont be top of the line modern dynamic, but it will do well enough for only a few bucks.

I know money may be an issue but in racket sports it is best to train with the equipment you will use in competition.

729 Super FX is not the best rubber in comparison to other rubbers mentioned. Even CJ8000 is miles ahead. I've gone through 4-6 sheets of Super FX in the office and oh god it's awful. It is somewhat spinny, but it lacks any form of speed. I've played it on Donic Waldner AR+ (which i think is equally garbage blade) and Donic Appelgren Allplay (which I play daily and know it is not to blame). On allplay it was playable, but it still felt dead as heck. Maybe if you pair it with an offensive speedy blade it might balance it out. But on ALL blade I highly advocate against it.