Getting ready to place an order for seals and at least a domminator spring. Is it worth the extra $$ to go for the domminator hammer and guide too? I plan to go to HPA eventually. Also, Does Umarex offer a complete seal pack or do I need to order each one individually? I have downloaded the parts diagram so I have each part number.

... the longer guide and heavier hammer seemed to cut down on the variance from shot to shot. It is only a few more $$$ (less than $10 for both IIRC) so why not.