Far from any sort of "love", ...I'm neither affilliated with, nor do I have any particular loyalty to, Line 6 or any other manufacturer.

(Click on my pink avatar at left for more details of my background.)

It's my ongoing worldwide experience, however, that gives rise to my firm belief that any other manufacturers' wireless beltpack systems of comparable ruggedness and reliability cost between two and five times as much (Aargh !) as Line 6's XD-V and Relay, ...but only very few approach the versatility and sonic excellence of those Line 6 systems.

Hence MY decision to "gamble" by importing my fairly large inventory of Line 6 systems, in spite of the abysmal local support then being offered by Line 6's local represenatives here "at the end of the Earth", "Terra Australis Incognita".

After more than a year on the road, that "gamble" has revealed itself to have been a true "winning ticket".

I don't believe you should have any concerns about the TA4 connections to Line 6 beltpack's as I've yet to suffer an intermittency or failure, even though I regularly depend on a variety of them.

It's nevertheless my policy to always carry spares, but (thankfully) they're not expensive items.    

Here are links to just one of the European firms that supply them:

http://www.thomann.de/gb/shure_wa_304.htm

http://www.thomann.de/gb/shure_wa302.htm

I'm always thankful of the opportunity to learn...

Can you provide details of the system that you prefer ?

(I'd love to try it.)

Excuse the Aussie vernacular, Folks...

But I would bloody well hope so, mate ! 

In common with many manufacturers, they've clearly had a quality-control problem with a run of G50s and sundry problems with some overseas representatives, but I'm very much hoping that their lack of response to your query is just an atypical oversight.

It's certainly out of character with both the very existence of this forum as well as with the generally excellent and innovative nature of their products.