Hi everyone! I am looking to order a Tokyo Marui but many US based shops do not have any in stock. Firesupport (https://www.fire-support.co.uk/) seems to have a bunch and also offer fps upgrades and battery conversions for Tokyo Marui (as they use the proprietary ones). They have a lot of Facebook reviews, but as always you cannot be too careful before ordering. Anyone who has had experience with them - can you comment on the below? 1. How reliable are their upgrades (they offer a full Tokyo Marui gearbox upgrade to increase FPS, which is a very involved process as I have heard). Is the work reliable or is it shoddy and will require repairs later? 2. I am ordering to the US and their customer service department told me they will only accept a bank transfer or wire for payment when shipping from UK to US. This seemed a little sketchy as I've always been told I should use credit cards or PayPal for maximum security for online shopping, but wanted to ask if anyone has dealt with this before. Are they reputable and will deliver on the product after sending money or should this be avoided? Thanks!