My old MC chest rig setup for standard airsoft games, based on the Ferro Chesty Wide. I basically never used the dangler because all I needed to carry was a few mags, maybe some type of airsoft grenade/s in the smoke pouch and my phone, wallet and car key in the GP with some gloves or a shemagh wrapping up the phone for protection.
Since such leisure activities grant the luxury of little equipment needing to be carried I didn’t require the front compartment of the Spiritus Mk3 Micro Fight Chassis. I prefer to spread things across rather than outwards wherever possible and that was possible here, hence my later proclivity for single cell placards. That said for longer sustainment in entirely different situations where I’d opt for a webbing setup and maybe need a large pack, then a narrower chest rig may well be required to fit between a yolk or straps of larger kit.
Initially I didn’t think the Ferro Chesty harness could be made to work with placards that use 1″ buckles rather than G-Hooks hence the Spiritus Fat Straps, but it turned out that wasn’t the case so the Fat Straps are now on my Bank Robber.
In the end both the Fat Straps and Chesty harness had a tendency to slide off my right shoulder which is why I moved to the Crye Airlite Convertible as the base. With the Spiritus placard being quite a rigid board when loaded out and the Ferro Chesty so thin and flexible, the velcro join between the two wasn’t great and would peel away at the edges. Once the peeling has started it has more likelihood of propagating when talking about velcro. Probably not an issue for the large chested men out there, but that’s not me so I setup my Ammo Hub with a bit of a curve to it and that helps a lot in that regard when using highly modular gear where the harness/back strap connects to the expansion base or platform rather than central placard.
None of my thoughts are intended to tell you what to do in any given context, but maybe my experiences with the combinations I’ve tried may contain a small nugget of useful info with regards choosing gear for what it is you personally may be planning to do. Whatever gear you get first time probably won’t be right and once you use it for the first time you’ll want to make changes and that process can continue for a long while and potentially be expensive, so be sure to stick to proven products in proven/multipurpose colourways.