i put my SVD back in the Box a week or 2 ago while it still works...i too like it....now the MVP as you prob already know is a work-horse but it do have 510 center-pin probs if you put yur toppers on to tight or use a topper w/long pin like a KF.......would highly suggest to get you an airflow control adapter for it to use as a new base....and come on over to the MVP owners thread...some great folks w/good info to share....hope to see ya there 
