Answering question for Amp Kit - MOD® Kits, MOD102 guitar amplifier

Product:
Amp Kit - MOD® Kits, MOD102 guitar amplifier

Question:
It looks like the 102 has no preamp grid stopper but the 102+ has a 33K GS resistor. Also, 102 filter caps are 47/22/22 uF and 102+ has 47/47/47 uF filter caps. Can I add these items to a 102 build with no downside? Thanks!