I am NOT at all knowledgeable with game or hardware modification so understand if people don't consider my opinion very strongly as I don't have knowledge.
Anyway, my opinion is that it is, NOT a good idea 2 modify at all especially in world ranking competitions. This is because there might b unknown advantage/s 4 improving a competitor's PRs whether or not they r deliberatally trying 2 gain unfair advantage/s or not.
There may b unknown or known side effects 2 the modification within the gameplay giving unfair advantage/s or disadvantage/s.
Without knowing anything, the only modification that MIGHT b logical 2 me is the improvement 2 the Replay mode 4 better proof but maybe I am contradicting myself by saying this as it could have unknown or known side effects that add advantage/s or disadvantage/s 2 the gameplay.
Personally, I'll only ever play vanilla hardware and software as I want 2 b sure my in game achievements/progress r valid/real without any doubt or contraversy.
I think it's especially important 2 have NO modification or only the Replay improvement modification at absolute most. These r world rankings after all!
I think I remember reading that a competitor used mods without meaning 2 gain advantage which was discussed in a argument which I am NOT getting into.
I don't mean 2 take away his PRs and want his PRs on the site provided the mods didn't give him advantage

I don't mean 2 argue or create contraversy either.
I like having the top players who earn their PRs in the world rankings whether they're much better or much worse than me, if they earn their PRs I am all 4 them being accepted onto the site

But this isn't even about David or anyone specific. In general, I am against modification, especially in world rankings.
If the rules have been unclear which it sounds like they quite possibly have been, I am even less sure than I was b4 about what 2 do going forward.
I am less sure because if, modification didn't invalidate PRs in the past, why should it in the future as some competitor's PRs that might have modification that's believed 2 b level playing field might have already been accepted? It would b unfair 2 stop accepting future PRs with modification that r level playing field when they were accepted in the past.
Also, removing PRs which utilised modification that r believed 2 b scored in a level playing field manner from the past seems a bit unfair if there were NO rules against modification that give NO advantage playing with modification 4 trying 2 get PRs at the time the PRs were achieved. Not that anyone is arguing 4 or against this, 2 my knowledge.
Even though I disagree/may disagree with the rules about modification while Time Trialing PRs in this community, the rules MUST b obeyed so everyone is playing the same 'fair' way. If I myself or anyone else 4 that matter doesn't agree with the rules, we don't have the right 2 break them. If unhappy, don't compete in the community or request a reasonable change of rules that r practical and non problematic.
Just stating my opinions, not that anyone has agreed or disagreed with me no one specifically. I am not agreeing or challenging anyone's opinions yet. These r my beliefs about the competition and modification.
But than again, there could b unfair advantages known or unknown about these modifications that should immediately invalidate PRs IF they get discovered, (the side effects giving unfair advantage/s if there is any unfair advantage/s).
In general, modification is a bad idea in competition. Competitors should play vanilla copies of the game and hardware 2 avoid problems and contraversy.
It might b too late 2 change this unless, unfair advantage/s r found in modification. I think I remember reading that there was visibility advantages discovered with texture modification. I don't know if I read this or imagined it as I wasn't paying close attention.
2 b very honest, I am lazy and don't read these big long arguments. I miss some key points due 2 my attention span having difficulty concentrating.
But commonsense tells me, "Modification is a bad idea in world competition. Even if there's NO advantage from modification, why draw negative attention 2 yourself or contraversy about your PRs in general? It's logical 2 play without modification. Even if there's NO advantage from modification. Why create contraversy if u r NOT cheating?" In general, NOT referring 2 David or anyone else. This is my honest point of view. But perhaps I thought of David because of what I have already read.
Again, I don't know what I am talking about. Just seems logical 2 me, (my opinion).