Hey guys, I'm thinking of pulling a pair of the power amp valves from my vh100r in order to reduce the power. just have a few questions before i do it...

1) is this safe, ive noticed a few people on here have done it so im assuming it is...
2) is the procedure as simple as just removing the valves? no other tampering to be done?
3) am i right in saying the pairs to be removed are either the inside pair or outside pair?