[dsraven]

no problem, Ii suffered with the sore hands too.
if you are block sanding high build for the super smooth look you probably wanna find the longest and least flexible one that will fit your space. I find they work well on the small spots where a regular sized block is too big but you also don't wanna take the hide off your fingers. they also work really well for reconditioning plastic headlights that have gone yellow or look like wax paper. on those I wet sand using a spray bottle of lightly soapy water and/or a bucket of the same. start with a 600 grit and work my way up to 2500 grit then polish with plastX. use the paper with a lrft to right motion for one grit and an up and down motion for the next., wet sand. when starting sand with the lower grit until the water coming off is white, not yellow, then go to the next grit and change the water