are the following people good and reliable signers

[miley cyrus fan]

hey guys ive been doing quite well lately autograph wise and have recieved some succeses of requests i sent quite some time ago anyway i havent sent im some time and will definetily be sending very soon. anyway i have some people on my list too send too and im wondering if their good signers
kerri walsh
kate voegele
sendhill ramaurthy(possible spelling mistakes)
lauren conrad(maybe)
shawn johnson (maybe)

now im huge fans of these guys and theirs autographs would definetly have me jumping up and down, but im wondering if their really reliable to their fans and how great their succes rate is. i know their is feedback but i wanna know your personal opinions on their signing habbits.

also should i re-write june foray and chelsea staub, i know june is very old(she actualy turned 91 today) but i am a huge fan of her work and not to get greedy would love to write her again. and chelsea i am in contact with via myspace so i may send her a message saying i hope you dont mind but imma send you again because ive found some awsome pictures of you id love to send whatever. i have recieved back from both june and chelsea. also both have also celebrated a birthday recently so i will send them birthday wishes, nothing major just a happy birthday from a big fan or something like that.

any input would be great