Thanks to Steve for guiding me through the problems I was having with my Pro120. His patient assistance was of the highest order, and he even made a short video to help show me how to check the connections and voltages.

I showed the machine a multi-meter tonight, and made it look as if I knew what I was doing and it decided to start working again so we are up and running for the Summer.

Thanks Steve

BV    12th May 2017    Newbury   

Dear Steve,

Again many thanks for your great support. Our start into this year's season was a full success thanks to the great Pro150 controller and your great effort in supporting us.

I have attached a photo of your V100 German class 212 loco of today's running session. Unfortunately our fun was ended by a wintery rain and snow shower just after about two hours.

Have a great week!

Best regards,

OG    2nd May 2017   

Dear Steve,
A very big thank you for your help on the phone and at 4QD to find the
problem with the electrical drive of my battery powered vehicle. The
problem turned out to lie with my wiring and my power connections.
Thank you for your patience and persistence to fault find the problem.
You really engaged with my problem and my application. A very
efficient and professional service from 4QD to a very high standard.
Thank you.

RD    24th February 2017    Northampton   

Without rambling further, I want to say it has been a good experience working with you and thank you very much.

DW    31st January 2017    Oregon   

..... Secondly we came 2nd overall in the finals with your porter 10xx and were only 96 metres behind first place, as well as coming first at every lead up event previous to this…a massive improvement upon the future and so I thank you for this, finished joint 23rd overall which is amazing for a Kit Car….

SB    20th January 2017    Worcestershire   

Thank you for the meet and greet Wednesday 28th a complete eye opener, we can’t thank you enough for your help. We will meet again I’m sure of it, for the next project, we have in mind,
But first!! We’re hoping to get the Jeep up and running soon (photo’s to follow)
Thank you again you’ve given us hope again for completing the Jeep project.

CB    3rd January 2017    Leicestershire, UK   

We received the controller today and thank you again for the quick turn round service. Hopefully another 12+ years of good service by the controller.

MF    9th December 2016    Wiltshire, UK   

By the way it seems you reputation is growing on Facebook, a recent post about controllers attracted multiple comments, including my own, about how good your service is.

LM    5th December 2016    Surrey, UK   

Again, thanks so very much for your help. I think I'm back on my way.

DW    5th December 2016    Washington, USA   

Many thanks, this is fantastic support, I look forward to testing it and providing further feedback.

SW    4th November 2016    Wiltshire, UK   

As discussed today, 3 emails with photos and video of the go cart made possible by your help and enthusiasm shown in resolving some of the technical problems for us.
Great company and very impressed by products and support given.

DB    5th October 2016    Gloucestershire, UK   

Wow, thanks once again for your help and quick response. It is much appreciated.

JW    7th September 2016    Leicestershire, UK   

Steve I will try to get you some pictures and video. Everything worked perfect. Take off is just right, as is the deceleration, I left the settings as they came from you. Thank you for all your help and a quality product. Like so many things you get what you pay for and quality is worth the cost. Thanks again for all the help the smiles on my granddaughters face will bring tears to my eyes forever.

RC    31st July 2016    Kentucky, USA   

Thank you very much for your. excellent service, i am very impressed and will pass this on to my loco colleagues.Its been a pleasure to deal with you, your delivery is second to none.

DW    8th July 2016    West Yorkshire, UK   

Many thanks for your cooperation,finding the fault and making the repair.I am overjoyed at the result , and wish to pass on my kindest regards to all concerned.

DD    22nd June 2016    Aberdeenshire, UK   

Many thanks for your prompt service and for the under mentioned advice. I am looking forward to assembling all the 4QD pieces and, to the delight of the grandchildren, at last complete the electric cart that has been so long in the making.
It's a pleasure to do business with a company like yourselves.

KS    23rd May 2016    Shropshire, UK