This thread has just made my week. It is so nice:
1.Enthusiasts helping each other
2. Heartfelt words of praise to the designer
3. Then the designers son pops up in the group and has clearly inherited his dad interest
4. To find that dad continues his interest into (presumably) a ripe old age
5. All benefit from the knowledge imparted
6. (If like me) so many cheered by the overall thread.
7. My heartfelt thanks to every one of you but especially to Richard and Matthew!!