Treesome test project:
1) Test the Geoleap grips I got. Geoleap is a Chinese brand that makes MCC look-a-likes and these at very reasonable price (12€ shipped for 4 grips 😉). More tackiness than velvets, and they come in blue as well as 6 other colours.
2) Test NBR-dowels as vibrational damping. I did some testing on the different vibration damping inserts : Ping Cushin, TT Sensicore (straw with a door seal wrapped around it), Sting Stopper (backer rod) and wooden dowels in bare shafts and the Cushins and wooden dowels at the tip came out on top. From my career I know nitrile butadiene rubber is one of the best materials to dampen vibration, so I ,purchased a NBR cord seal that I've cut to dowel size as tip inserts.
3) Test some clubs that are MOI matched and make use of my DIY MOI meter (https://golfbuzz.com/d/10431-my-homebuild-clubmaker-tools/48). I cut an old set down to 0.4" progression and with the 3gr from the NBR inserts as extra tipweight I got the MOI I was aiming at; the swing weight goes from D1 in the wedges to C7 in the 3 iron. I've done half the set to take them out to the range this afternoon and compare with the other half that still is SW match.
4) Transformed my trusted Titleist driver into a thriver by installing a old NV shaft that is 1" shorter in it. I need to exchange the head weight to one 10gr heavier, but without this extra weight the thriver is at C3 and comes out exactly at the same MOI (394 kg/inch²) of the irons above. Taking it as well for a test drive later on the day.