@SpeakCuba, I have no idea what your OH ability is or what algs you struggle with most but here we go anyway - I'm sub-29 OH and sub-21 3x3 (best ao1000s) so as far as that ratio goes, I think it's decent since OH is one of my main events (along with 3bld). Make what you will of my advice (other than "practise OH more than you practise 3x3"):
The most important thing in my view is to "hear" your algs, i.e., as per this video from
Antoine Cantin:
It seems like a joke video at first, but I've actually always done that unironically both for 3x3 as well as OH algs (before I came across that video). Even for some 3-Style algs, I find it useful despite the "intuitive" nature of 3-Style.
Most of my OH algs are the same as for 3x3, but over time I very gradually replace them with the better OH versions for ones I find particularly cumbersome (e.g., V perm, F perm, Ub perm, Y perm, E perm along with some OLLs). I don't believe using OH algs should be a priority from the start but of course, this depends on what your bottlenecks actually are. At some point I might work on OH G perms next because they feel like my slowest right now.
Chunking the algs obviously helps, just like you would for learning 3x3 algs. It also helps if you're able to remember the notation for the first few moves. For example, everyone knows sune starts with R U R' U - so that's enough to get you going. For Ua perm, you should know off the top your head it starts with R U' followed by a familiar 4-move trigger, and then away you go. For G perms (if just using the 3x3 RUD-gen algs), know when to do R2 and when to do what I call the "sandwich" turns (U' & D at the same time, etc).
As for practising: you know your 3x3 algs, so you should always be able to set up cases to practise OH. Don't leave solved cubes on your desk - instead, always set up a case for you to review later. Right now, I've been having trouble again with Ga perm after a bit of a break from OH, so I'm going to focus on it a bit more by setting it up with Gb perm and purposefully reviewing it a couple of times a day and gradually once every few days, etc. Some of the H case COLLs are annoying mainly due to how infrequently I see them, so that's another thing I just need to review more regularly and attach notation reminders to.
With table abuse, I know the correct method is to rest the cube on the RD edge, however, I instead just use the FR edge since I'm only CFOPing anyway - I don't think anyone else does this, but it seems to work well enough for me with Z perms and H perms.
Listen to your algs!
