Hi , I'm from Barbados it's a couple years since I purchased 4225 and to be honest it's the best money I ever spent in terms of finding issues and proving the cause.
Hello and welcome to the forum, thank you for the introduction
"Barbados and PicoScope" sounds like a match made in heaven.
Its great to hear how the scope has not only found issues for you but also delivered the evidence required when proving the cause
This will give you the confidence to charge the customer accordingly whilst also generating a data base of reference material for vehicles/machines with similar faults. Records of good and bad captures make for great training material too