My go to 1st choice stabilizer is the old legacy one under depreciated features. Is is Mercalli V2 from Sony days and as it seems to have been built for HD as it is prone to crash Vegas on some 4K footage. When this happens in the past I have used Mercalli V4 and V5 (trial, never bought it as it did not work well enough to supersede V4). Some Newblue versions which were quite good but took ages to render.V21 and V22 would not use MerV4 or any of the Newblue versions so I was left with the legacy and Vegas in built (which seems to be similar but not identical to Mercalli V6. Mercalli currently does not provide a specific NLE version for Vegas but the generic OFX version of V6 does appear and is available for 30% off at £30.80 - a good price I would say. So how does it perform? I have been testing it over the last two days on XAVCS 4K footage and I really like it. It has three analyse modes - Turbo, AI, AI+3D a simple initial Analyse (Turbo) and an Advanced Mode. The features are similar but not exactly the same as the Vegas Stabilization. It provides even with simple mode excellent removal of wobble and rotation common with hand held footage and as good as the legacy version I have used for years. It has not crashed Vegas and turbo mode is fast. It shows up as Mercalli Pro in V22 OFX list along with CMOS Fixr Pro and Picture Enhanzr RT (which provides real time image enhancing, useful, I used it a few times). Worth a try - trial version available to see if it out performs what you are currently using.