Now Syber Squad was excellent! But then Gridman had awesome designs, which helped.

If it is only the first series I can agree on what you have said.
If it is going to be the rest of the series then I will say no.
Garo stories were written based on the bit and pieces of information taken from the supplementaries. Without those there will be thousands of "why" coming from the viewers. Unless there are additional information given on screen to cover up all the holes nobody will understand why things are being thrown in without warning or explaination.

There's a mild problem with the Garo discussion.
>Adaptation
>Not translation

If Garo was brought over, things would change. Stories altered, characters added and removed.

Uhh, I understood Makai Senki and The One Who Shines in the Darkness just fine? And I'm pretty sure I'm not the only one here who did.

Ditto. The show has been really good about giving us enough to understand what we need to in order to follow it. The supplementary stuff probably fills in things around the edges really nicely, but I've never felt like I had no idea what was going on.

This whole conversation about Ultraman is weird because it seems to run with more than one assumption as to what series is being discussed. We've gotten Ultraman series several times in the US. Gosei is talking about the original, while I think Sentai is discussing Tiga.

The original Ultraman received an English dub in the sixties (as were several unreleased episodes of Ultra Q by the same group). Ultraseven has been dubbed into English twice, once for the Hawaiian market and later for the more well-known 90s TNT Ultra 7 series. Ultraman: Towards the Future wasn't really an adaptation as it was a series specifically made for the Western market, but it's worth noting, as was Ultraman: The Ultimate Hero despite never actually airing in the US. The last Ultraman adaptation was Tiga, which first aired as a terrible 4Kids dub and then received a fully-subbed release on DVD.

Tsuburaya has never wanted Ultraman to receive the Power Rangers style of adaptation. They were okay with it for Gridman and Syber Squad was actually more successful than the original, but they have always wanted Ultraman characters to receive greater care than that, thus the creation of Great/Powered and the filming methods introduced in Ultra Galaxy that were supposed to aid in supplementing new actors around the existing footage (sadly, no one bit). The garbage Tattooed Teenage Alien Fighters series was actually supposed to be an adaptation of the Ultraman-tied series Andro Melos, but Tsuburaya pulled out when they found what they were in for, and the zero-budget looking series is the result.

Keitai Sousakan 7 could work

Tomica Hero: Rescue Force & Rescue Fire

These^