same here............while i haven't had but one issue with an engine which was taken care of by Barb at Hobbico, the other issues i've had were with my GP kits, and all those issues were put to rest instantly by Barb as well.
Hobbico has the best customer service i've seen in years................wish other companies were so competent.

Slimline on the other hand makes a good product, but don't expect any help from them if you have problems............i and several friends have their fuel pumps which work great, but some come with the wrong fittings..........Slimlines answer, "i've never had such a problem", and that's it.......no further replies, no help whatsoever.