I have had a chance to compare vibrations of PC, UDM, and Festool RO 150 FEQ this weekend. PC was brand new 7336SP (6" counterweight) with 5" backing plate and 5" CCS pad. UDM was, to keep apples to apples, with "same" backing plate and pad. Rotex was with their supersoft 6" backing plate and same kind of pad as PC/UDM but in 6".
On each of 3, 4, 5, and 6 settings UDM was more pleasant to work with than PC. I spent 5 hours working with UDM today. My arm did not hurt nor tingle afterwards. My elbow (I have chronically injured righ elbow and I am rightie) was not getting irritated even though it gets irritated easily. When it comes to vibrations between PC and UDM give me UDM anytime.
Between UDM and Festool Festool's vibrations were ... well ... that thing almost doesn't vibrate. I mean, it does vibrate but it is nothing compared to UDM. In vibration category RO 150 FEQ is clear winner with huge lead. And it better be for money it costs.
On each of 3, 4, 5, and 6 settings UDM was more pleasant to work with than PC. I spent 5 hours working with UDM today. My arm did not hurt nor tingle afterwards. My elbow (I have chronically injured righ elbow and I am rightie) was not getting irritated even though it gets irritated easily. When it comes to vibrations between PC and UDM give me UDM anytime.
Between UDM and Festool Festool's vibrations were ... well ... that thing almost doesn't vibrate. I mean, it does vibrate but it is nothing compared to UDM. In vibration category RO 150 FEQ is clear winner with huge lead. And it better be for money it costs.